How To Fix RSBBS101 - Communication error when calling a function in source system &1

RSBBS101 - Overview

• Message type: E = Error

• Message class: RSBBS - BW: Reports-Reports-Interface

• Message number: 101

• Message text: Communication error when calling a function in source system &1

What causes this issue?

To create SAP systems as recipients you need functions in source system
&V1&. A communication error occurred during call-up.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the connection the the source system by using the transaction
SM59.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSBBS101 - Communication error when calling a function in source system &1 ?

  The SAP error message RSBBS101 indicates a communication error when trying to call a function in a source system. This error typically occurs in the context of SAP Business Warehouse (BW) when there is an issue with the connection between the BW system and the source system (which could be an SAP ERP system or another data source).
  Causes of RSBBS101
  
  Network Issues: There may be network connectivity problems between the BW system and the source system.
  RFC Connection Problems: The Remote Function Call (RFC) connection might be incorrectly configured or not functioning properly.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the source system.
  Source System Down: The source system might be down or not reachable due to maintenance or other issues.
  Function Module Issues: The specific function module being called may not exist or may have been changed in the source system.
  Timeouts: The call