How To Fix /IWNGW/CM_BEP_COS020 - Callback in the provider system started to resolve '&1' for RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_BEP_COS -

• Message number: 020

• Message text: Callback in the provider system started to resolve '&1' for RFC

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 /IWNGW/CM_BEP_COS020 - Callback in the provider system started to resolve '&1' for RFC ?

  The SAP error message /IWNGW/CM_BEP_COS020 typically indicates an issue with the callback mechanism in the provider system when trying to resolve a specific request for Remote Function Call (RFC). This error is often related to the SAP Gateway and can occur in scenarios involving OData services or when the system is trying to communicate with an external system.
  Cause:
  
  Network Issues: There may be network connectivity problems between the SAP system and the provider system.
  Configuration Issues: The RFC destination may not be correctly configured, or the connection parameters may be incorrect.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations.
  Service Availability: The service in the provider system may not be available or may be down.
  Timeouts: The request may be timing out due to long processing times in the provider system.
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the SAP system and the provider system. You can use tools like ping or telnet to test connectivity.
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that the connection type, target host, and system number are correct.
  Check Authorizations: Ensure that the user credentials used for the RFC call have the necessary authorizations to access the required resources in the provider system.
  Service Status: Check if the service in the provider system is up and running. You may need to restart the service or check logs for any errors.
  Increase Timeout Settings: If the request is timing out, consider increasing the timeout settings in the RFC destination configuration.
  Check Logs: Review the application logs in both the SAP system and the provider system for any additional error messages or warnings that could provide more context.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for the specific version of the SAP Gateway and OData services you are using, as there may be version-specific considerations.
  
  If the issue persists after following these steps, it may be beneficial to involve your SAP Basis team or SAP support for further investigation.