How To Fix CRWB502 - Partner system/client combination is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: CRWB -

• Message number: 502

• Message text: Partner system/client combination is invalid

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRWB502 - Partner system/client combination is invalid ?

  The SAP error message CRWB502 indicates that there is an issue with the partner system or client combination in the context of a business transaction or configuration. This error typically arises in scenarios involving cross-system communication, such as when using SAP Business Workflow, SAP PI/PO, or when integrating with external systems.
  Cause:
  
  Invalid Partner Profile: The partner profile for the specified system or client may not be correctly configured or may not exist.
  Incorrect Logical System Configuration: The logical system name may not be correctly defined in the SAP system.
  Client-Specific Settings: The settings for the specific client may not be properly set up, leading to the invalid combination.
  Missing or Incorrect RFC Destination: The RFC destination used for communication may not be correctly defined or may not point to the correct system.
  Authorization Issues: The user or system may not have the necessary authorizations to access the partner system.
  
  Solution:
  
  
  Check Partner Profile:
  
  Go to transaction WE20 and verify that the partner profile for the specified partner is correctly configured.
  Ensure that the correct message type and other settings are in place.
  
  
  
  Verify Logical System Configuration:
  
  Check the logical system configuration in transaction SCC4 to ensure that the logical system is correctly defined and assigned to the appropriate client.
  
  
  
  Review RFC Destination:
  
  Use transaction SM59 to check the RFC destination settings. Ensure that the destination is correctly configured and that the connection is working.
  Test the connection to ensure that it can communicate with the partner system.
  
  
  
  Check Client-Specific Settings:
  
  Ensure that any client-specific settings related to the partner system are correctly configured. This may include settings in transaction SPRO or other configuration transactions.
  
  
  
  Authorization Check:
  
  Verify that the user or system has the necessary authorizations to access the partner system. This may involve checking roles and authorizations in transaction PFCG.
  
  
  
  Consult Documentation:
  
  Review any relevant SAP documentation or notes related to the specific error message for additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for CRWB502 in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE20 (Partner Profiles), SM59 (RFC Destinations), and SCC4 (Client Administration).
  Integration Scenarios: If this error occurs in the context of an integration scenario, review the integration settings and ensure that all components are correctly configured.
  
  By following these steps, you should be able to identify and resolve the issue causing the CRWB502 error message in your SAP system.