How To Fix WVLB002 - Error calling function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WVLB - Messages for Load Building

• Message number: 002

• Message text: Error calling function module &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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WVLB002 - Error calling function module &1 ?

  The SAP error message WVLB002, which states "Error calling function module &1," typically indicates that there is an issue with a specific function module being called in the system. This error can arise from various underlying causes, and resolving it often requires a systematic approach. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Function Module Not Found: The specified function module may not exist in the system or may have been deleted.
  Authorization Issues: The user executing the function may not have the necessary authorizations to call the function module.
  Incorrect Parameters: The parameters being passed to the function module may be incorrect or not in the expected format.
  System Configuration Issues: There may be configuration issues in the system that prevent the function module from executing properly.
  Transport Issues: If the function module was recently transported from another system, there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Check Function Module Existence: Use transaction SE37 to check if the function module exists and is active. If it is missing, you may need to restore it or transport it from another system.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 after the error occurs.
  Validate Parameters: Review the parameters being passed to the function module. Ensure they are in the correct format and contain valid data.
  Debugging: If you have access to debugging tools, you can set breakpoints in the function module to see where it fails and why.
  Check System Logs: Use transaction SLG1 to check application logs for any related error messages that might provide more context.
  Transport Consistency: If the function module was recently transported, ensure that all dependencies and related objects are also transported and consistent.
  
  Related Information:
  
  Transaction Codes: 
  
  SE37: Function Module Maintenance
  SU53: Authorization Check
  SLG1: Application Log
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the function module in question.
  Documentation: Review the documentation for the function module to understand its expected behavior and requirements.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation.