How BAPI/RFC canbe seen in other SAP systems

Hi
Howcan BAPI/RFC of R/3 system be seen in different SAP systems such as BW/CRM .
regards
Supern

Hi,
You can use them from other systems if they are set to be REMOTE-ENALED. This can be done from the tab Attributes in the function module maintenance. You will create the function module exactly the same as if it would be used in one system. If you want to use it from another system like BW, you need to add DESTINATION parameter when calling the function module. DESTINATION defines the RFC of the source system, this tells BW where the fm you are calling is setting.
Ex, if you have defined fm Z_BW_READ_R3_TABLE in R/3 system, you can call from BW using below code:
CALL FUNCTION 'Z_BW_READ_R3_TABLE'
 DESTINATION r3_rfc_dest
* EXPORTING
 TABLES
 INT_ITAB = INT_ITAB1.

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=======================
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 Answer of 2.
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How BAPI/RFC canbe seen in other SAP systems

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