How To Fix WL763 - Function module & has an invalid name

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 763

• Message text: Function module & has an invalid name

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL763 - Function module & has an invalid name ?

  The SAP error message WL763, which states that "Function module & has an invalid name," typically indicates that there is an issue with the naming convention or existence of a function module in the SAP system. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  
  Invalid Function Module Name: The function module name may not adhere to the naming conventions set by SAP. Function module names should typically start with a letter and can include letters, numbers, and underscores.
  
  
  Non-Existent Function Module: The function module you are trying to call may not exist in the system. This could be due to a typo in the name or because it has not been created or activated.
  
  
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated in the target system.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the function module, leading to the system not recognizing it.
  
  
  Namespace Issues: If the function module is in a specific namespace, it may not be accessible if the namespace is not properly defined or if the user does not have access to it.
  
  
  Solutions:
  
  
  Check Function Module Name: Verify that the function module name is correct and follows the SAP naming conventions. You can do this by checking the function module in transaction SE37 (Function Builder).
  
  
  Verify Existence: Use transaction SE37 to search for the function module. If it does not exist, you may need to create it or check with your development team.
  
  
  Check Transport Logs: If the function module was recently transported, check the transport logs to ensure that it was successfully imported and activated.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to access the function module. You can check this in transaction SU53 or by consulting with your security team.
  
  
  Namespace Verification: If the function module is in a specific namespace, ensure that the namespace is correctly defined and that the user has access to it.
  
  
  Debugging: If the error occurs during a specific transaction or program, consider debugging the program to identify where the function module is being called and what parameters are being passed.
  
  
  Related Information:
  
  
  SAP Notes: Check SAP Notes for any known issues related to the specific function module or error message. You can search for relevant notes in the SAP Support Portal.
  
  
  Documentation: Review the documentation for the function module to understand its purpose and any prerequisites for its use.
  
  
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  
  By following these steps, you should be able to identify the cause of the WL763 error and implement an appropriate solution. If the issue persists, it may be beneficial to consult with your SAP Basis or development team for further assistance.