a guide to standard costing - an oracle white paper

8/8/2019 A Guide to Standard Costing - An Oracle White Paper

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A GUIDE TO STANDARD COSTING

An Oracle White PaperNovember 2003


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ABSTRACT==========

Standard costing is used by Customers who employ predetermined costs for valuing inventoryand for charging material, resource, overhead, period close, and job close and schedulecomplete transactions. Differences between standard costs and actual costs are recorded as

variances.Manufacturing industries typically use standard costing.Costs of items can be shared across organizations using standard costing. A note on the samehas been provided in this paper. An attempt has been made to understand the way in whichcosts are built up for a manufactured item through this paper. This paper also provides an insightinto the Accounting distributions generated by transactions in different modules of theApplication.

SCOPE======

This paper has been authored keeping in view an audience familiar with Oracle CostManagement in general and Standard Costing Method in particular. Readers with anunderstanding of basic transactional cycles in Order Management, Purchasing, Inventory andWork in Process would be in a position to appreciate the entire gamut of this paper.

In order to avoid any bit of ambiguity, the contents have been distributed across2 parts (A and B). Part A deals with Rolling up cost of an assembly item with a 2 level BOM.This case has been discussed at length and makes for an interesting reading due to the inclusionof various parameters possible. However, yours truly, does not claim that this paper satisfies therequirement of a complete guide for Cost Rollup- Standard Costing. There is certainly more tocome. Also, it would be worth noting that the Assembly Cost Rollup is being replaced by theSupply Chain Rollup in the next functional release. However, the existing name, Assembly CostRollup has been used in this document.

Part B demonstrates the impact that standard costing has on varioustransactions across four different modules of Oracle Applications. An effort has been made toentwine the transactions with a business scenario. To enhance the readers clarity on the topicsdiscussed, screenshots and output of the relevant reports are used wherever necessary.

OVERVIEW==========An overview of a few topics has been provided to facilitate the understanding of the entirebreadth of this paper.Cost Elements---------------------To begin with, let us look at the various cost elements present in Cost Management.The unit cost of any item is the sum of the costs of all the cost elements.There are 5 cost elements, which are defined as follows:

Material -- The raw material/component cost at the lowest level of the bill ofmaterial determined from the unit cost of the component item.

Material -- The overhead cost of material, which can be used for any costs attributedOverhead to direct material costs.

Resource -- Direct costs, such as people (labor), machines, space, or miscellaneouscharges, required to manufacture products.

Overhead -- The overhead cost of resource and outside processing, which isused as a means to allocate department costs or activities.


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Outside -- This is the cost of outside processing purchased from a supplier.Processing

Sub-elements can be used as smaller classifications of the cost elements. Each cost element

must be associated with one or more sub-elements. An amount or rate is attached to each sub-element.

Basis Types------------------

Basis types determine how costs are assigned to the item. Basis types are assigned to sub-elements, which are then assigned to the item. Each sub-element must have a basis type.

Item -- Used with material and material overhead sub-elements to assign a fixedamount per item, generally for purchased components. Used with resource,outside processing and overhead sub-elements to charge a fixed amount peritem moved through an operation.

Lot -- Used to assign a fixed lot charge to items or operations. The cost per item iscalculated by dividing the fixed cost by the items standard lot size formaterial and material overhead sub-elements.

Resource -- Used to apply overhead to an item, based on the resource value earnedValue in the routing operation. Used with the material overhead and overhead

Sub-element only and usually expressed as a rate.

Resource -- Used to apply overhead to an item, based on the resource units earnedUnit in the routing operation. Used with the material overhead and overhead

Sub-element only and usually expressed as a rate.

Total -- Used to apply overhead to an item, based on the total value of the item. Used

Value with the material overhead sub-element only and usually expressed as a rate.

Activity -- Used to directly assign the activity cost to an item. Used with the materialoverhead sub-element only.

What is Cost Rollup?

Cost Rollup is a process by which the costs of assemblies are built, starting with the lowest leveland working up the structure to top-level assemblies. This process is specifically called a full costrollup. This method gives the most current bill of material structure and component costs.There is another way of rolling up Costs, which is the singlelevel rollup, which only looks at thefirst level of the bill structure for each assembly in the rollup and rolls the costs for the items atthis level into the parent. This method does not reflect structure or cost changes that have

occurred at a level below the first level of assemblies.

Part of the cost rollup process includes the option to print a report. If this option is chosen, eitherthe Consolidated Bills of Material Cost Report or the Indented Bills of Material Cost Report canbe printed.

This paper has made use of the following options:

Full cost rollup Indented Bills of Material Cost Report


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What is a Cost Type?

A cost type is a set of costs uniquely identified by name. In Standard Costing method, Frozen isthe seeded cost type. An unlimited number of additional simulation or unimplemented cost typescan be defined and updated.

In this paper, Pending Cost type is used for simulation purpose.

What is a Cost Group?

A cost group is a set of accounts that hold on hand inventory. Prior to cost groups,subinventories were utilized to hold the accounts. The physical and accounting attributes areused in the subinventories to track the location, quantity, and value of the inventory.

Cost groups were introduced to create separate tracking of the physical and accounting aspectsof inventory.

Some of the benefits of using a cost group are: Tracking quantity account and quantity movement characteristics

Maintain multiple item costs in each organization when using a perpetual costing method(Average, FIFO, and LIFO). Distinct cost is maintained for each item/cost groupcombination.

In standard costing, all inventory of an item carries only the standard costregardless of cost groups being utilized.

Eliminate the need for accounting changes for subinventory transfers.Subinventorytransfers are pure physical moves when using the cost group functionality.

If the current organization is not Project References Enabled, the Common cost group isdefaulted and cannot be updated. If the organization is Project Reference Enabled, any costgroup can be selected.The Common cost group is seeded when Cost Management is installed.The valuation accounts defined in the Organization Parameters window are used for this costgroup and cannot be changed or made inactive. However, in an organization that is Project CostCollection Enabled the name and description of this cost group can be changed.

Since Warehouse Management / Inventory Patchset B, there is new functionality with regard tocost groups. Each time a new organization is created, a new cost group is also created for thatorganization.

To determine the default cost group for a given organization, the Navigation is as follows:InventorySetupOrganizationParametersCosting Information (T).

The same Cost Group is associated with all the SubInventories in the Org. However, this couldbe overridden at the subinventory level.

Sharing Costs across Organizations

Costs of items can be shared across organizations using standard costing. This is a uniquefeature of Standard Costing method.If standard costs are shared across multiple organizations, costs are maintained by the costmaster organization and shared by the child cost organizations. Costs cannot be entered into thechild cost organizations. All reports, inquiries, and processes use the shared costs.

Pre-requisites for sharing costs across organizations:


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Inventory Organizations should be using the Standard Costing method.

Work in Process and Bills of Material modules should not be enabled for the ChildOrganizations

The item attributes "costing enabled" and "inventory asset value" should be controlled atthe Item level.

Note: The cost master organization can be a manufacturing organization using Work in Processor Bills of Material.

The following points need to be kept in mind while sharing costs:

1. Once the User decides to share costs at implementation time, all child orgs defined infuture would need to share costs.

2. Cost update submission must be done for the master cost organization, when sharingcosts.

3. The accounting period organization in which the process is being launched should beopen for the cost master organization and all the organizations which are sharing costsfrom this master.

SETUP=======

In this section, let us try to understand the setup that serves as a foundation to present the testcases.

Bill of Material (BOM)------------------------------The following BOM would be used in understanding the Cost rollup process.

ORA1

O1 RA1

R1 A1


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Fig 1. Bill of Material of ORA1

As shown in the above screenshot, BOM of ORA1 comprises 3 Purchased items and 1 Sub-assembly.O1, R1 and A1 are the purchased items.

RA1 is the sub-assembly.

The Yield of component R1 is specified as 0.8, in the Component Details Tab of Bills of Materialscreen. This means to say that for every 1 unit of R1 used in the making of RA1, 0.8 units wouldeffectively get utilized and the remaining 0.2 units would go unutilized or waste. So, in order tosee that 1 unit of RA1 effectively gets utilized; 1/0.8 or 1.125 units should actually be used.

The yield of A1 is set to 1.

Fig 2. Bill of Material of RA1 displaying the yield of components

Similarly, the yield of sub-assembly RA1 is set to 0.7 in the BOM of ORA1.However, the yield of O1 is set to 1.


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Fig 3. Bill of Material of ORA1 displaying the yield of components

Resources

--------------3 Resources have been defined under 3 different Departments.DSR1, DSR2 and DSR3 are the 3 Departments defined.The Resources defined are LAM, FIX and SAW.

Resource LAM used for Lamination purpose is defined under Department DSR1Unit cost of this Resource is defined as $12.

The Navigation Path used for defining the Resource Unit Cost is as follows:Bills of MaterialRoutingsResourcesRates (B)

Fig 4. Resource Cost of LAM

Resource FIX used for fixing purpose is defined under Department DSR2.Unit Cost of Resource FIX is $16.

Fig 5. Resource Cost of FIX

Resource SAW is used for sawing.It is defined under Department DSR3 with a unit cost of $20.


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Fig 6. Resource Cost of SAW

ROUTINGS-----------------Routings are defined for both RA1 and ORA1.Routing for RA1 has got 2 operations 10 and 20.Resource LAM is attached to operation 10 and Resource FIX is attached to operation 20.Item R1 is worked upon in operation 10 and A1 is worked upon in operation 20 using therespective Resources attached.Usage of both the resources is set to 1.

Operation Component Resource Resource Usage Department10 R1 LAM 1 DSR1

20 A1 FIX 1 DSR2Fig 7. Routing for RA1Routing for ORA1 has 2 operations defined 10 and 20.Resources SAW and FIX are attached to operations 10 and 20 respectively.Item O1 is worked upon in operation 10 and RA1 in operation 20.Usage of Resource SAW is set to 0.9 and that of Resource FIX is set to 1.

Operation Component Resource Resource Usage Department10 O1 SAW 0.9 DSR320 RA1 FIX 1 DSR2

Fig 8. Routing for ORA1

Overheads----------------There are 2 overheads defined in the form of Mgmt and MfgMgmt.Hence, these overheads have been associated with the required Departments and Cost typePending. We would be using the Pending Cost type for our test case involving Cost Rollup.

Note:- Overheads operate at the Department Level and need to be associated with a cost type.Overhead Mgmt has been associated with Departments DSR1 and DSR2 with a rate of 9 and ituses a basis type of Resource Value.

The Navigation used is as follows:CostSetupSubelementsOverheadsRates (B)


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Fig 9. Association of Overhead Mgmt with Pending Cost Type and Departments DSR1 and DSR2

The same can be achieved using the following Navigation too:Bills of MaterialRoutingsResourcesRates (B)

As shown above, a 3-way association among the Overhead Mgmt, Pending Cost type, andDepartments DSR1 and DSR2 is complete.

However, in order to charge the overhead based on specific resources within the Department,there needs to be an association between the Overhead and the specific Resource within theDepartment.

To satisfy this condition, Overhead Mgmt has been associated with Resources LAM and FIXwithin Departments DSR1 and DSR2 respectively.

The Navigation used is as follows:CostSetupSubelementsOverheadsResources (B)

Fig 10. Association of Overhead Mgmt with Resources FIX and LAM for Pending Cost type

The same can be achieved for each resource using the following Navigation too:Bills of MaterialRoutingsResourcesOverheads (B)


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Similarly overhead MfgMgmt has been associated with Department DSR3 and Pending Cost typewith a rate of 7 using basis type Resource Unit. This Overhead has specifically been attached toResource SAW within Department DSR3.

Fig 11. Association among Department DSR3, Pending Cost type and Overhead MfgMgmt

Fig 12. Association between Overhead MfgMgmt and specific resource SAW within Department DSR3Item costs---------------All the 5 items, namely O1, R1, A1, RA1 and ORA1 have costs defined.These are supported with screenshots and would be introduced one after the other in the courseof the discussion, as and when required.

PART-A========

Part-A would look at the Cost rollup process for the Finished Good ORA1 in an Organizationemploying the Standard Cost method.

COST ROLLUP=============

As we start the exercise of understanding the rolled up costs, we must be reminded ofthe following:

1) A yield factor of 0.8 has been set against R1 in the BOM of RA1.This means to say that for every 1 unit of R1 used, there would be wastage of 0.2units in the process of making RA1.


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2) A yield of 0.7 has been set against RA1 in the BOM of ORA1.

3) Usage rate of Resource SAW has been set to 0.9 in the routing for ORA1.

As we go forward, we would understand the implications of the above settings.

Purchased Item A1---------------------------Let us begin our understanding from the buy item A1.Material Cost of Item A1 has been defined as $12 with a basis type of Item.Material Overhead Cost has been defined with a basis type of Total Value and a rate of 0.3.Thismeans that the Material Overhead value would be 0.3 times the existing total value of item A1.This results in a value of $3.6 i.e. 0.3 * $12.

Fig.13. Item Costs of A1

Let us look at the output of the Cost Rollup Report, which is the Bills of Material IndentedCost Report. The yield factor of 0.7 set against RA1 would come into play now. This means thatfor every 1 unit of RA1 used in the making of ORA1, 0.7 units would effectively get utilized andthe remaining 0.3 units would go unutilized or waste. So, in order to see that 1 unit of RA1

effectively gets utilized, 1/0.7 or 1.428 units should be used. This value would get percolated tothe next level of BOM too i.e. to R1 and A1.Cost computations would also get carried out accordingly.

Include in Rollup

| Based on Rollup

| | Asset/Costed

Op Item/ Description/ Last Make | | | Yield/ Quantity/ Shrink/ Extended Qty/ Item Unit Cost/

Level Seq Cost Element Sub-Elem Department Rev Buy | | | Phtm Basis UOM Rate or Amount Basis Factor Rate or Amount Res Unit Cost Extended Cost

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

..2 20 A1 SECOND LEVEL ITEM A Buy Y N Y N 1.0000 Ea 1.0000 0.000000 1.428571 15.60000

Material MATERIAL Item USD 12.000000 1.000000 17.142857 17.14286

Material Over Mat'lHndlg Ttl value USD 0.300000 17.142857 0.300000 5.14286

Fig 14. Bills of Material Indented Cost Report Output for Item A1.

The Extended Qty/ Rate or Amount Column shows a value of 1.428571 against item A1 which isdue to the yield factor of 0.7 set against the sub-assembly in the making, RA1.The Material cost of A1 would get multiplied by this value to provide the extended cost as

$17.14286 i.e. $12 * 1.428571 = $17.14286.

The Material Overhead Cost has a rate of 0.3 defined using Total Value as Basis type.This data is represented by Quantity/Rate or Amount and Yield/Basis columns respectivelyagainst the Cost Element of Material Overhead.As understood earlier, when a basis type of Total Value is used, the existing total value of theitem would multiply the rate. This leads us to the product of 0.3 and $17.14286, which is theexisting total value of the item A1 resulting from the rollup.Hence a value of $5.14286 is seen as the extended cost of Material Overhead.


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Material Cost = $12 * 1.428571 = $17.14286Material Overhead Cost = $3.6 * 17.14286 = $5.14286

The column Item Unit Cost/Res Unit Cost displays a value of $15.6 based on the Item Costsscreen. This is only a representative value and is not used in the cost rollup.

Purchased Item R1---------------------------Material Cost of R1 has been defined as $10 and the Material Overhead Cost as $2.Both these costs use a basis type of Item.

Fig.15. Item Costs of R1

The computations pertaining to this item for the cost rollup have been made a bit more complexwith the inclusion of a yield factor of 0.8 against this item in the BOM of RA1.While rolling up costs associated with R1, system would look at both the yield factors i.e. 0.7 ofRA1 and 0.8 of R1.

Include in Rollup

| Based on Rollup

| | Asset/Costed



-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

..2 10 R1 2nd LEVEL ITEM A Buy Y N Y N 0.8000 Ea 1.000000 0.000000 1.785714 12.00000

Material MATERIAL Item+ USD 10.000000 1.000000 17.857143 17.85714

Material Over Mat'lMgmt Item+ USD 2.000000 1.785714 2.000000 3.57143

Fig 16. Bills of Material Indented Cost Report Output for Item R1

The Extended Qty/ Rate or Amount Column shows a value of 1.785714 which is derived asfollows:

1 1------------------------------------------------- = ------------ = 1.785714Yield factor of R1 * Yield factor of RA1 0.8 *0.7

This value directly multiplies the Material and Material Overhead costs as they use a basis type ofItem, resulting in values of $17.85714 and $3.57143 in the extended cost column against theMaterial and Material Overhead cost elements respectively.

Material Cost = $10 * 1.785714 = $17.85714Material Overhead Cost = $2 * 1.785714 = $3.57143

Sub-assembly RA1---------------------------As we have understood the rolled up costs derived with respect to the buy items R1 and A1, wenow move to sub-assembly RA1.


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A Material Overhead Cost of $4 was defined for sub-assembly RA1 before the rollup was carriedout. Please note that there was no Material Cost defined.

Fig.17. Item Costs of RA1

As Resources and Overheads are expended in making the sub-assembly RA1, the rolled upcosts would include the same along with the Material Overhead cost defined initially.

Include in Rollup

| Based on Rollup

| | Asset/Costed



-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------.1 20 RA1 SUB-ASSEMBLY A Make Y Y Y N 0.7000 Ea 1.000000 0.000000 1.428571 314.60000

Material Over Mat'lHndlg Item+ USD 4.000000 1.428571 4.000000 5.71429

10 Resource LAM DSR1 Y Item+ HR 1.000000 1.000000 1.428571 12.00000 17.14286

10 Overhead Mgmt DSR1 Res value USD 9.000000 17.142857 9.000000 154.28571

20 Resource FIX DSR2 Y Item+ HR 1.000000 1.000000 1.428571 16.00000 22.85714


Fig 18. Bills of Material Indented Cost Report Output for Item R1

Let us take the cost elements one by one and understand the costs.

The Extended Qty/ Rate or Amount Column shows a value of 1.428571 against item RA1 whichis due to the yield factor of 0.7 set against RA1 in the BOM of ORA1.The Material Overhead of $4 gets multiplied by this value to result in an extended cost of$5.71429.

The Cost Element of Resource has got 2 sub-elements in the form of Resources LAM and FIXunder Departments DSR1 and DSR2 respectively with a basis type of item.The unit cost of Resource LAM is $12 as shown in Fig.4.The unit cost of Resource FIX is $16 as shown in Fig. 5.These costs once again get multiplied by 1.428571 to result in extended costs of $17.14286 and$22.85714 respectively.

The final cost element that needs to be accounted is Overhead. Overhead Mgmt has beenattached to Cost type Pending with a rate of 9 and a basis type of Resource Value as shown inFig. 9.

A basis type of Resource Value means that the Rate defined against this Overhead would getmultiplied by the Value of Resource used. A pre-requisite for this to happen is that the Overhead

should be attached to the specific Resource.

To satisfy this condition, the Overhead Mgmt has been attached to Resources LAM and FIX asshown in Fig.10.

Hence, the cost of Overheads is calculated by multiplying the rate of 9 with the extended cost ofboth the Resources, LAM and FIX. This results in values of $154.28571 and $205.71429 in theextended cost column against the Overhead Mgmt.

Material Overhead Cost = $4 * 1.428571 = 5.71429.


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Resource Costs--- LAM = $12 * 1.428571 = 17.14286--- FIX = $16 * 1.428571 = 22.85714

Overhead Costs--- Mgmt (based on Resource Value of LAM) = 9 * $17.14286 = $154.28571--- Mgmt (based on Resource Value of FIX) = 9 * $22.85714 = $205.71429

The Value of $314.6 in the Item Unit Cost/Res Unit Cost Column against RA1 is the rolled upcost of sub-assembly RA1. This means to say that, if a rollup were carried out for RA1 only andnot ORA1, the rolled up cost of RA1 would have been $314.6.

This is essentially computed without considering the yield factor of 0.7 defined against RA1 in theBOM of ORA1. However, the yield factor of 0.8 defined for Buy item R1 would be considered inthis computation as this item forms a part of the BOM of RA1.Purchased Item O1---------------------------This should be the simplest of all.RA1 has a Material Cost of $18 and a Material Overhead Cost of $7 defined with a basis type ofItem.

Fig.19. Item Costs of O1

For a change, there is no yield factor linked to this item.

Hence, the costs defined would directly get considered for roll up.

Include in Rollup

| Based on Rollup

| | Asset /Costed

Op Item/ Description/ Last Mak | | | Yield/ Quantity/ Shrink/ Extended Qty/ Item Unit Cost/


----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

.1 10 O1 FIRST LEVEL ITEM A Buy Y N Y No 1.0000 Ea 1.000000 0.000000 1.000000 25.00000



Fig 20. Bills of Material Indented Cost Report Output for Item O1

Material Cost = $18Material Overhead Cost = $7

Finished Good ORA1------------------------------Finally, we get to the Finished Good Item ORA1.

ORA1 has got a Material Cost of $5 with basis type Item.The Material Overhead Cost has a rate of 2 with a basis type of Resource Unit.This means to say that the Resource Units used in making ORA1 would multiply the Rate. Asnoted earlier, usage of Resource SAW is set to 0.9 and that of FIX is set to the not so interestingvalue of 1.


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Hence, a total of 1.9 resource units are used.This value gets multiplied with the rate of 2 and results in a value of $3.8.

Fig.21. Item Costs of O1

Include in Rollup

| Based on Rollup

| | Asset/Costed



-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

0 ORA1 MAIN ASSEMBLY A Make Y Y N Ea 1.000000 0.000000 1.000000 667.52857


Material Over Mat'lHndlg Res units USD 2.000000 1.900000 2.000000 3.8000010 Resource SAW DSR3 Yes Item+ HR 0.900000 1.000000 0.900000 20.00000 18.00000

10 Overhead MfgMgmt DSR3 Res units USD 7.000000 0.900000 7.000000 6.30000

20 Resource FIX DSR2 Yes Item+ HR 1.000000 1.000000 1.000000 16.00000 16.00000


Fig 22. Bills of Material Indented Cost Report Output for Item O1

As in the case of RA1, let us take each cost element and check for the Cost arrived at.Material Cost element has an extended cost of $5, which is picked up from the Item Costsscreen. Similarly the Material Overhead Cost of $3.8 gets picked up.

Resource Cost element has 2 resources SAW and FIX as sub-elements.Resource FIX has a unit cost of 16 as shown in Fig.5Hence this cost is picked for the roll up.Resource SAW has a unit cost of 20 as shown in Fig.6.

However SAW has a usage of 0.9 in the Routing for ORA1 as represented by Fig.8.Hence the extended cost would get calculated as 0.9 * 20 resulting in $18.The next Cost element to be considered is Overhead.There are 2 sub-elements under this cost element in the form of MfgMgmt and Mgmt.As shown earlier, Mgmt has a rate of 9 defined with a basis type of Resource Value and it hasbeen associated with Resource FIX. (Figs. 9 & 10).Also, MfgMgmt has a Rate of 7 defined with a basis type of Resource Unit and has beenattached to the Resource SAW under Cost type Pending for the Resource Unit basis type to beeffective. (Figs. 11 & 12)

Hence the cost of sub-element Mgmt is calculated by multiplying the rate of 9 with the ResourceValue of $16 resulting in $144.

The cost of sub-element MfgMgmt is calculated by multiplying the rate of 7 with the Resource unitvalue of $0.9 resulting in $6.3.

Material Cost = $5Material Overhead Cost = $2 * 1.9 = $3.8Resource Costs

--- SAW = $20 * 0.9 = $18--- FIX = $16

Overhead Costs


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--- MfgMgmt = $7 * 0.9 = $6.3--- Mgmt = $16 * 9 = $144

A summation of all the extended costs discussed above results in the rolled up cost of ORA1,which is $667.52857.

Shrinkage Rate=============This case could have been made more interesting by bringing Shrinkage Rate into picture.Enter the manufacturing shrinkage rate as 0.2 for the Finished Good ORA1.

This can be done using the following Navigation:Cost Item Costs Item Costs Item Costs Summary Item Costs Details.

Fig 23. Shrinkage Rate of ORA1

Cost rollup uses the value entered here to determine the incremental component requirementsdue to the assembly shrinkage of the current item.Shrinkage Rate cannot be entered for items that do not base costs on a rollup of the items bill ofmaterial and routing (buy items).

Note:- This value is different from the Shrinkage Rate entered in the MPS/ MRP Planning Tab ofthe item Master. Shrinkage Rate is considered for Planning purposes by MRP / MPS.

Let us now understand the implication of this MFG Shrinkage Rate.

All the costs displayed in the extended cost column of the earlier Indented Bill of Material Reportwould get multiplied by the following factor:

1/(1 manufacturing shrinkage)

Hence the final cost of ORA1 would become:

$667.52857 * 1/(1-0.2) = $834.411

Cost Update==========As understood earlier, Standard Costing uses the cost of an item that exists in the Frozen costtype only for accounting all transactions pertaining to the Organization.Hence, the rolled up cost in Pending cost type needs to be updated to Frozen Cost type.This is accomplished by running the Update Standard Costs concurrent request.

The Navigation used for this purpose is as follows:


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MTL_MATERIAL_TRANSACTIONS with costed_flag = N waiting for a cost worker to processthem. The Cost Manager will spawn no cost worker until the Cutoff Date is changed.

To cost the January 2004 transactions once period of December 2003 is properly closed, theCost Cutoff Date is changed. This can be changed to the start of the next period or next quarteror next year --- whenever the rates need to be changed next. Once changed, the costprocessing begins for the transactions that have been waiting.

For standard costs, the processing of the transactions is immediate. For Average, FIFO, andLIFO costing the process takes longer because of the need to process the transactionssequentially to keep the costs accurate.

As part of our test case, Standard Cost Update has been run for all the 5 items.Hence, costs of these items are now available for the system to consider them for all furthertransactions and their subsequent accounting.

PART-B========

In Part B, focus is laid on the behaviour of Standard Costing method on some basic transactionsacross 4 different modules of Oracle Applications, namely Oracle Purchasing, Oracle Inventory,Oracle Work in Process and Oracle Order Management.A business requirement of manufacturing and shipping sub-assembly RA1 is assumed.A voluntary choice of RA1, instead of ORA1, has been made in order to maintain the complexityof transactions at a minimum level and also to aid a quicker and better understanding of theaccounting distributions generated by the system.

The series of transactions followed for manufacturing and shipping of RA1 is as follows:

1) Purchase Order transaction for receiving 10 quantities of Purchased item A1 intosubinventory SUB2.

2) A Return to Vendor transaction of 2 faulty quantities of A1 from SUB2 to Vendor.

3) Miscellaneous Receipt transaction for receiving 10 quantities of purchased item R1 intosubinventory SUB1.

4) Subinventory transfer transaction for transferring 8 quantities of R1 from subinventorySUB1 to subinventory SUB2.

5) WIP Completion of 3 quantities of sub-assembly RA1 into subinventory SUB3 bysourcing components R1 and A1 from subinventory SUB2.

6) WIP Assembly Scrap transactions of 1 quantity each of RA1 at Operation 10 andOperation 20 respectively.

7) Sales Order transaction for shipping 2 quantities of RA1.

From the above flow of transactions, it is evident that 3 subinventories SUB1, SUB2 and SUB3have been used for carrying transactions.

These subinventories have a set of accounts (cost group) defined, representing each of the 5cost elements. Similarly, the WIP accounting class, Discrete, used for WIP transactions also hasa set of accounts defined.


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These accounts are as represented below:

SUB1 SUB2 SUB3 DiscreteMaterial 01-000-1410-0000-000 01-000-1410-1100-000 01-000-1410-1200-000 01-000-1410-0000-000

Material Overhead 01-000-1420-0000-000 01-000-1420-1100-000 01-000-1420-1200-000 01-000-1420-0000-000

Overhead 01-000-1430-0000-000 01-000-1430-1100-000 01-000-1430-1200-000 01-000-1430-0000-000

Resource 01-000-1440-0000-000 01-000-1440-1100-000 01-000-1440-1200-000 01-000-1440-0000-000

Outside Processing 01-000-1450-0000-000 01-000-1450-1100-000 01-000-1450-1200-000 01-000-1450-0000-000

Fig 24. Accounts of Subinventories and Accounting Class

These are the accounts that are frequently hit by the transactions.In addition to the above accounts, there are a few other accounts that would get hit by thetransactions, which would be presented at a later stage as and when required.

Now, we proceed with the understanding of the transactions and the corresponding accountingdistributions generated.

1) A Purchase Order for 10 quantities of item A1 is created, received and delivered intosubinventory SUB2. Price of item A1 on the Purchase Order is $14.Please note that the material cost of A1 is $12 and Material Overhead cost is $3.6 asshown in Fig.13.

Fig 25. Transaction Summary of Receiving transaction

As shown in the screenshot, a quantity of 10 of item A1 is received with destination typeReceiving and delivered with destination type Inventory.

Fig 26. Accounting of Receiving transaction

As the PO has been raised for 10 quantities with a unit price of $14, the ReceivingInspection account would get debited by an amount of $140 and the same amount wouldcredit the Inventory AP accrual account.

The Navigation for defining the Receiving Inspection Account is as follows:


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InventorySetupOrganizationsReceiving Parameters

Fig 27. Navigation for defining Receiving Inspection Account

The Navigation for defining the Inventory AP Accrual account is as follows:InventorySetupOrganizationsParametersOther Accounts (T)

Fig 28. Navigation for defining Inventory AP Accrual account

After receiving the Purchase Order, a delivery is made to subinventory SUB2.The accounting distributions generated are as follows:

Fig 29. Accounting Distributions of Receiving transaction


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As the Receiving Inspection account got debited by $140 by the receiving transaction,the same amount would credit it during the Delivery transaction. Hence the transactionvalue column displays a value of 140 against the Receiving Inspection account. The

other account that gets credited is the overhead absorption account.As noted earlier, material overhead cost of item A1 is $3.6 and since 10 quantities havebeen delivered, this account gets credited by an amount of $36. This account representsthe absorption account of Material Overhead, Matl Hndlg, used for Material overheadcost of A1 (Refer to Fig.13 which displays the MatlHndlg sub-element).

The Navigation used for defining the Absorption account for a Material Overhead or anOverhead is as follows:CostSetupSub-ElementsOverheads

Fig 31. Navigation for defining Overhead Absorption Account.

The Material Account of SUB2, 01-000-1410-1100-000, would get debited by $120 andthe Material Overhead account, 01-000-1420-1100-000 would get debited by $36. Thesefigures are arrived based on the Costs defined for item A1 as shown in Fig. 13.The difference between the transaction values of Receiving Inspection Account andMaterial account of subinventory SUB2 is debited to the purchase Price Varianceaccount.

The Navigation for defining the Inventory AP Accrual account is as follows:InventorySetupOrganizationsParametersOther Accounts (T)


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Refer to Fig.28 for the same.Note:- Purchase Price Variance calculation does not consider Material Overhead------- Cost of the item.

Note:- Purchase Price Variance account would have got credited if transaction-------- value against Receiving Inspection account was less than $120 or if

transaction value against Material account was more than $140.

2) A Return transaction is performed to return 2 faulty quantities of A1 to the supplier basedon the same PO.

2 more lines would get added to the Receipt Transaction Summary as follows:

Fig 32. Transaction Summary of Return-to-Supplier transaction

Thus, the 2 quantities are first returned to Receiving and then to the Supplier.The accounting entries created at the Receiving level would exactly display a reversal of

the earlier Receiving accounting entries.

Fig 33. Accounting of Return-to-Supplier transaction

The Receiving Inspection account would get credited by an amount of $28 as 2 quantitiesare being returned at a price of $14.The same amount would debit the Inventory AP accrual account.

Similarly, the Return to Supplier transaction distributions also display an exact reversalof the earlier PO Receipt transactions.


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The Receiving Inspection account would get debited by an amount of $28 and theOverhead absorption account by $7.2 i.e. $3.6 * 2quantities.As the Material Cost of item A1 is $12, $24 would credit Material account.$7.2 would credit material Overhead account, as Material Overhead Cost of A1 is $3.6.Purchase Price Variance account is hit by the difference between Material account andReceiving Inspection account.

Now, the onhand quantity of item A1 is 8 in subinventory SUB2

3) A Miscellaneous Receipt is generated for Receiving 10 quantities of item R1 intosubinventory SUB1.

The charge account entered during Miscellaneous Receipt is 01-580-7740-0000-000.

Fig 36. Charge Account for Miscellaneous Receipt

Please note that R1 has a material cost of $10 and Material Overhead Cost of $2defined. Refer to Fig. 15.


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Fig 37. Accounting Distributions of Miscellaneous Receipt transaction

As 10 quantities are being received, material account of subinventory SUB1 is debited by$100.Similarly Material Overhead account is debited by $20.The charge account entered during Receipt is credited by $120.

4) A subinventory transfer of 8 quantities of R1 is carried out from subinventory SUB1 toSUB2.

Fig 38. Subinventory transfer transaction

As material is being moved from SUB1 to SUB2, the accounts of SUB2 would get debitedand those of SUB1 would get credited.

Fig 39. Accounting Distributions of Subinventory transfer transaction

Material accounts are hit by a value of $80 as 8 quantities with a cost of $10 each arebeing moved. Material Overhead accounts are hit by a value of $16 as 8 quantities with acost of $2 each are being moved.

5) As per the earlier 4 transactions carried out, the onhand quantity of A1 and R1 insubinventory SUB2 is 8 each.


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Using this onhand quantity, let us proceed with the making of sub-assembly RA1 anddeliver to subinventory SUB3.A standard discrete job is created with a start quantity of 5 for making sub-assemblyRA1. Completion subinventory is provided as SUB3.Refer to Fig.7 for the routing used in making RA1.

Before proceeding with the understanding of WIP Assembly Distributions, let us have are-look at the costs rolledup for sub-assembly RA1.This would ease the understanding of the accounting distributions generated.

Include in Rollup

| Based on Rollup

| | Asset/Costed

Op Item/ Description/ Last Make| | | Yield/ Quantity/ Shrink/ Extended Qty/ Item Unit Cost/


-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

0 RA1 SUB-ASSEMBLY A Make Y Y N Ea 1.000000 0.000000 1.000000 314.60000

Material Over Mat'lHndlg Item+ USD 4.000000 1.000000 4.000000 4.00000

10 Resource LAM DSR1 Y Item+ HR 1.000000 1.000000 1.000000 12.00000 12.00000


20 Resource FIX DSR2 Y Item+ HR 1.000000 1.000000 1.000000 16.00000 16.00000


.1 10 R1 2nd LEVEL ITEM A Buy Y N Y N 0.8000 Ea 1.000000 0.000000 1 .250000 12.00000



.1 20 A1 SECOND LEVEL ITEM A Buy Y N Y N 1.0000 Ea 1.000000 0.000000 1.000000 15.60000

Material MATERIAL Item+ USD 12.000000 1.000000 12.000000 12.00000Material Over Mat'lHndlg Ttl value USD 0.300000 12.000000 0.300000 3.60000

---------------

314.60000

========

Fig 40. Cost Rollup for item RA1

Hence the total cost of item RA1 after the rollup is $314.6This cost is split across the cost elements as follows:

Material $24.5Material Overhead $6.1 + $4Overhead $252Resource $28

Fig 41. Element-wise Cost split for item RA1

The amount of $4 shown separately is the Material overhead Cost defined against RA1.This cost of RA1 existed, before the rollup for RA1 as done. Hence it is not included aspart of the rolled up costs but is considered separately.

The distributions generated due to WIP Assembly Completion of 3 quantities of RA1 areas follows:


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Fig 42. Accounting Distributions of WIP Assembly Completion transaction

Fig 43. Accounting Distributions of WIP Assembly Completion transaction

The subinventory accounts of SUB3 would get debited as material is delivered to this

subinventory after completion. On the other hand, all accounts of WIP Accounting Classare credited.As 3 quantities are completed, the amounts in Fig. 41 get multiplied by 3 and debit thecorresponding cost elemental accounts of subinventory SUB3.The same behaviour is exhibited by the WIP Accounting Class accounts too while gettingcredited, except for the Material Overhead account. This account gets debited by therolled up Material Overhead Cost only, which is $18.3 ($6.1 * 3)The Material Overhead cost of $4 defined for the sub-assembly RA1 is chargedseparately to the overhead absorption account of MatlHndlg sub-element.


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This behaviour is exhibited because Material Overheads of the sub-assembly (RA1 inthis case) that is being completed are not charged to the job. They are chargedseparately to the Overhead Absorption account of the specific Material Overhead sub-element.However, the same is charged to the Material Overhead account of the InventoryValuation accounts (Subinventory accounts).

1) The job in the previous transaction was completed for 3 quantities only though the startquantity was 5 due to faulty work during operations 10 and 20.Thus we would scrap the remaining 2 quantities, one at operation 20 and the other atoperation 10.Let us first look at the Distributions generated due to the WIP Assembly scrap transactionperformed at operation 20.

Fig 44. Accounting Distributions of WIP Assembly Scrap transaction at operation 20

As far as WIP Accounting Class is concerned, the accounting distributions generated arealmost same as the ones generated for assembly completion transactions as theassembly is put to scrap after completion of the last operation.As a result, all the resources used in the routing are used up and also all thecorresponding Overheads are incurred.However, the only difference occurs due to the Material Overhead cost defined for thesubassembly RA1. This is because Material Overheads are incurred only when the itemis completed into a subinventory in case of WIP transactions and received in asubinventory in case of Purchasing transactions.Hence, the accounting entries generated on the credit side are same as the onesprovided in fig. 41 . Material Overhead account does not include the $4 defined at sub-assembly level.The corresponding account that is hit on the debit side is the Scrap account enteredduring the Scrap transaction.

The Navigation for defining scrap account for specific transaction is as follows:WIP Move Transactions Move Transactions.

The scrap account can be provided in the Move Transactions form only if the optionRequire Scrap Account is checked in the WIP Parameters form.

The Navigation for the same is as follows:WIPSetupParameters Move Transaction (T)The distributions generated due to scrap transaction performed at operation 10 are asfollows:


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Fig 45. Accounting Distributions of WIP Assembly Scrap transaction at operation 10

As 1 quantity of assembly RA1 is scrapped at operation 10, Material, Material Overhead,Resource and Overhead costs associated with Operation 10 would only get considered.The costs associated with Operation 20 would not come into picture. Also, as in theprevious scrap transaction, the material overhead cost defines at subinventory level, $4,

is not considered.Component R1 and Resource LAM are attached to operation 10 of the routing. Thecorresponding overhead associated with LAM is Mgmt. Refer to Fig.7.

From Fig.40, Material and Material Overhead costs rolled up for item R1 are $12.5 and$2.5 respectively.Resource cost incurred due to usage of resource LAM is $12.Similarly, Overhead cost due to Mgmt is $108.Based on above costs, corresponding accounts of WIP Accounting Class are hit.Scrap account entered during the scrap transaction is 01-000-7730-0000-000.Thisaccount gets debited.

2) The last transaction that is undertaken is the shipment of 2 completed quantities of the

sub-assembly RA1 from subinventory SUB3.Booking a Sales Order in Order Management module of the Applications carries out thistransaction. It actually comprises 2 steps wherein the 2 quantities are first moved toStaging subinventory and then shipped from there.

The distributions generated due to the first step where material is moved fromsubinventory SUB3 to subinventory Staging1 are as follows:


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Fig 46. Accounting Distributions of Sales order Pick transaction

A close look at the distributions would indicate that they are very similar to the ones

generated by a subinventory transfer transaction.This is because the Sales Order Pick transaction transfers material from onesubinventory to the other.Hence, the accounts of SUB3 would get credited and the corresponding accounts ofStaging1 would get debited.As 2 quantities are being transferred, the values in Fig. 41 would get multiplied by 2 andthe same would hit the accounts.The second step would involve shipment of quantities from the Staging subinventory. Thedistributions generated for the same are as follows:

Fig 47. Accounting Distributions of Sales Order issue transaction

As material is moving from Staging Subinventory, valuation accounts of this subinventorywould get credited. Note that these were the same accounts that got debited by the SalesOrder Pick transaction.


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The account that is getting debited, 01-520-5110-0000-000, is the Cost of Goods Soldaccount.The Navigation for defining the Cost of Goods Sold account is as follows:InventorySetupOrganizationsParametersOther Accounts (T)

Fig 48. Navigation for defining the Cost of Goods Sold account

Summarization of Accounting Entries================================A summary of accounting entries for the transactions carried out is as follows:

PO ReceivingACCOUNT DEBIT CREDITReceiving Inspection @ PO cost XX

Inventory A/P Accrual account @ PO Cost XX

PO DeliveryACCOUNT DEBIT CREDITSubinventory Material Account @ PO Cost XX

Subinventory Material Overhead Account XX

Receiving Inspection @ PO cost XX

Material Overhead Absorption Account XX

Purchase Price Variance (Favorable/Unfavorable) XX XX

Return to Supplier from ReceivingACCOUNT DEBIT CREDITReceiving Inspection @ PO cost XX

Inventory A/P Accrual account @ PO Cost XX

Return to Supplier from SubinventoryACCOUNT DEBIT CREDITSubinventory Material Account @ PO Cost XX

Subinventory Material Overhead Account XXReceiving Inspection @ PO cost XX

Material Overhead Absorption Account XX

Purchase Price Variance (Favorable/Unfavorable) XX XX


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Miscellaneous Receipt

ACCOUNT DEBIT CREDITSubinventory Material Account@ standard cost XX

SubinventoryMaterial Overhead Account@standard cost XX

Entered G/L account @ standard cost XX

Subinventory transferACCOUNT DEBIT CREDITFrom Subinventory Material Account@ standard cost XX

From Subinventory Material Overhead Account@standard cost

XX

To Subinventory Material Account@ standard cost XX

To Subinventory Material Overhead Account@ standardcost

XX

WIP Assembly CompletionACCOUNT DEBIT CREDITCompletion Subinventory accounts (Inventory Valuation) XX

WIP accounting class valuation accounts (wip valuation) XX

Overhead Absorption Account XX

WIP Assembly ScrapACCOUNT DEBIT CREDITScrap Account XX

WIP accounting class valuation accounts (wip valuation) XX

Sales Order PickACCOUNT DEBIT CREDITFrom Subinventory Accounts at Standard Cost XX

To Subinventory Accounts at Standard Cost (Staging) XX

Sales Order Issue

ACCOUNT DEBIT CREDITCost of Goods Sold account. XX

From Subinventory Accounts at Standard Cost (Staging) XX


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White Paper: A Guide to Standard Costing

November, 2003

Author: Dhannawada Sreenivasa Rao

Contributing Authors: N/A

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a guide to standard costing - an oracle white paper

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