qRFC with Outbound Queue & Inbound Queue between two different SAP systems - One LUW per Queue Call

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After calling the RFCs under a queue, the next commit work statement closes the current LUW and opens a new one. Here we have the report.. Execute it.
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DATA ls TYPE scarr.
*** first queue *****
CALL FUNCTION 'TRFC_SET_QIN_PROPERTIES'
  EXPORTING
    qout_name = 'OUT_QUEUE1'
    qin_name  = 'INN_QUEUE1'.
clear ls.
ls-carrid = 'XX'.
CALL FUNCTION 'ZCREATE_FLIGHT_REC'
 IN BACKGROUND TASK
 "AS SEPARATE UNIT " creates a separate luw
 DESTINATION 'SRC_TO_TGT'
EXPORTING
  is = ls.

CALL FUNCTION 'TRFC_SET_QIN_PROPERTIES'
  EXPORTING
    qout_name = 'OUT_QUEUE1'
    qin_name  = 'INN_QUEUE1'.

CLEAR ls.
ls-carrid = 'XX'.
ls-carrname = 'XX AIRLINE'.
CALL FUNCTION 'ZUPDATE_FLIGHT_REC'
 IN BACKGROUND TASK
 "AS SEPARATE UNIT " creates a separate luw
 DESTINATION 'SRC_TO_TGT'
EXPORTING
  is = ls.
COMMIT WORK. " End of first LUW

*** Second queue ***
CALL FUNCTION 'TRFC_SET_QIN_PROPERTIES'
  EXPORTING
    qout_name = 'OUT_QUEUE2'
    qin_name  = 'INN_QUEUE2'.
clear ls.
ls-carrid = 'YY'.
CALL FUNCTION 'ZCREATE_FLIGHT_REC'
 IN BACKGROUND TASK
 "AS SEPARATE UNIT " creates a separate luw
 DESTINATION 'SRC_TO_TGT'
EXPORTING
  is = ls.

CALL FUNCTION 'TRFC_SET_QIN_PROPERTIES'
  EXPORTING
    qout_name = 'OUT_QUEUE2'
    qin_name  = 'INN_QUEUE2'.

CLEAR ls.
ls-carrid = 'YY'.
ls-carrname = 'YY AIRLINE'.
CALL FUNCTION 'ZUPDATE_FLIGHT_REC'
 IN BACKGROUND TASK
 "AS SEPARATE UNIT " creates a separate luw
 DESTINATION 'SRC_TO_TGT'
EXPORTING
  is = ls.

COMMIT WORK. " end of second LUW
WRITE :/ 'Check outbound queues in source system in Tx- SMQS'.
WRITE :/ 'Check Inbound queues in target system in Tx- SMQR'.

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Step2. Here we have the report output.

 Step3. Source System: Tx- SMQR( Out Bound Scheduler). Select both the queues and double click on it.

Step4. Source System: Double click on the queue name.

Step5. Source System: So here we have two LUWs for two Queues. Process the queues.

Step6. Target System: Tx- SMQS( Inbound Scheduler). The snap shot of comparison of the TIDs.

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