How To Fix CRM_WFD_UI012 - Communication failure while calling RFC to extract staffing levels

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_WFD_UI - WFD: UI Messages

• Message number: 012

• Message text: Communication failure while calling RFC to extract staffing levels

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_WFD_UI012 - Communication failure while calling RFC to extract staffing levels ?

  The SAP error message CRM_WFD_UI012 indicates a communication failure while calling a Remote Function Call (RFC) to extract staffing levels in the SAP Customer Relationship Management (CRM) system. This error can occur due to various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP CRM system and the backend system (such as SAP ERP or SAP S/4HANA) that is being called via RFC.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect connection parameters, such as the target system's IP address, port, or user credentials.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to access the required data or execute the function module.
  Backend System Issues: The backend system may be down, or there may be issues with the specific function module being called.
  Timeout Settings: The RFC call may be timing out due to long processing times or heavy load on the backend system.
  SAP Notes: There may be known issues or bugs related to this error that have been documented in SAP Notes.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the CRM system and the backend system. You can use tools like ping or telnet to test connectivity.
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination being used. Ensure that the connection parameters are correct.
  Test the connection from the RFC destination screen to see if it is successful.
  
  
  Review Authorizations: Ensure that the user credentials used for the RFC call have the necessary authorizations to access the required data and execute the function module.
  Check Backend System Status: Verify that the backend system is up and running. Check for any issues with the specific function module being called.
  Adjust Timeout Settings: If the RFC call is timing out, consider increasing the timeout settings in the RFC destination configuration.
  Consult SAP Notes: Search for relevant SAP Notes that may address this specific error. You can use the SAP Support Launchpad or transaction SNOTE to find and implement any necessary corrections or updates.
  
  Related Information:
  
  Transaction Codes: 
  
  SM59: To manage RFC destinations.
  ST22: To check for dumps that may provide more information about the error.
  SLG1: To view application logs that may contain additional details about the error.
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance, providing them with detailed information about the error and the steps you have already taken.
  
  By following these steps, you should be able to identify the cause of the CRM_WFD_UI012 error and implement a solution to resolve it.