How To Fix /IWFND/CM_DESIGNTIME138 - Unable to retrieve function module list from function group &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 138

• Message text: Unable to retrieve function module list from function group &1

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 /IWFND/CM_DESIGNTIME138 - Unable to retrieve function module list from function group &1 ?

  The SAP error message /IWFND/CM_DESIGNTIME138 indicates that the system is unable to retrieve the function module list from a specified function group. This error typically occurs in the context of SAP Gateway or when working with OData services.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to access the function group or its function modules.
  Function Group Not Found: The specified function group may not exist or may have been deleted.
  Transport Issues: If the function group was recently transported, there may be inconsistencies or issues with the transport.
  System Configuration: There may be configuration issues in the SAP system that prevent the retrieval of function modules.
  Database Issues: There could be underlying database issues that are preventing the system from accessing the function group.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to access the function group and its function modules. You can check this using transaction SU53 after the error occurs.
  Verify Function Group: Use transaction SE80 or SE37 to check if the function group exists and is correctly defined. If it does not exist, you may need to recreate it or restore it from a transport.
  Transport Consistency: If the function group was recently transported, check the transport logs for any errors. You may need to re-import the transport or resolve any inconsistencies.
  System Configuration: Review the configuration settings related to the SAP Gateway and OData services. Ensure that all necessary components are properly configured.
  Database Check: If you suspect database issues, you may need to run database consistency checks or consult with your database administrator.
  Restart Services: Sometimes, restarting the SAP Gateway or relevant services can resolve temporary issues.
  
  Related Information:
  
  Transaction Codes: 
  
  SE80 (Object Navigator) to check function groups and modules.
  SE37 (Function Module) to view specific function modules.
  SU53 (Authorization Check) to analyze authorization issues.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Logs: Review system logs (transaction SM21) for any related error messages that could provide more context.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or open a support ticket with SAP for further assistance.