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Sending and Executing tRFC LUWsThe tRFC Managers in both systems (tRFC client and tRFC server) use synchronous RFC tocommunicate. This occurs in two phases:

Phase 1: Function Shipping•  All LUW data is sent to the partner.

•  If CPIC errors occur, the transfer can be repeated (using transaction SM59).

•  The tRFC server uses the TID to check whether the LUW has already been executed(inserted into the database table ARFCRSTATE).

•  The tRFC server informs the tRFC client that the LUW has been executed successfully.

•  The function ARFC_DEST_SHIP executes this phase.

 

Phase 2: Confirmation

•  The tRFC client sends a confirmation to the tRFC server.

•  The tRFC server deletes the TID in the TID table.

•  The tRFC client deletes all LUW data that belongs to this TID.

•  The LUW has been executed successfully.

•  The function ARFC_DEST_CONFIRM executes this phase.

 

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tRFC Server 

 

Destinations NONE and SPACENote that the destinations NONE and SPACE can have different meanings:

tRFC Within a System

•  SPACE LUW is executed on any application server.

•  NONE LUW is executed on the same application server as the caller.

 

SM58

•  SPACE is interpreted as NONE.

•  NONE is interpreted as an internal destination (such as pwdf0211_AX4_15).

 

Separate Units and Different Destinations in an LUW•  Each tRFC call with a separate unit is a sub-LUW (separate TID).

•  All tRFC calls that use the same destination are assigned to a sub-LUW.•  All sub-LUWs and the main LUW are handled as a single LUW (in accordance with

commit/rollback).

•  Each sub-LUW is handled as a separate LUW (while it is sent and executed in the targetsystem).

 

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tRFC Tools

•  RSARFCRD: tRFC Monitor (transaction SM58)

•  RSARFCSE: Restart an LUW (background job)

•  RSARFCEX: Restart tRFC LUWs (background job)

•  RSQOWKEX: Restart QOUT qRFC LUWs

•  RSQIWKEX: Restart QIN qRFC LUWs

•  RSARFCSE: Delete an LUW (background job)

•  RSARFCER: Delete various LUWs

 

Continue by reading the following:

qRFC with Outbound Queue