How To Fix >1002 - Error calling function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: >1 - Shockwave SAPGUI message handling

• 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message >1002 - Error calling function module &1 ?

  The SAP error message >1002 Error calling function module &1 typically indicates that there is an issue with the execution of a function module in the SAP system. This error can arise due to various reasons, including but not limited to:
  Causes:
  
  Function Module Not Found: The specified function module does not exist in the system or is not activated.
  Authorization Issues: The user executing the function may not have the necessary authorizations to call the function module.
  Parameter Issues: Incorrect or missing parameters being passed to the function module can lead to this error.
  System Configuration: There may be issues with the system configuration or settings that affect the execution of the function module.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated.
  Runtime Errors: There could be runtime errors or exceptions occurring within the function module itself.
  
  Solutions:
  
  Check Function Module Existence: Verify that the function module specified in the error message exists in the system. You can do this by using transaction SE37 (Function Builder).
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 to analyze authorization failures.
  Validate Parameters: Check the parameters being passed to the function module. Ensure they are correct and meet the expected data types and formats.
  Check Activation: If the function module was recently created or modified, ensure it is activated. You can activate it in SE37.
  Review System Logs: Check the system logs (transaction SM21) for any related error messages that might provide more context about the issue.
  Debugging: If you have access, you can debug the function module to identify where the error is occurring. Use transaction SE80 or SE37 to set breakpoints and analyze the code.
  Transport Management: If the function module was transported, ensure that all related objects were also transported correctly and that there are no inconsistencies in the transport layer.
  
  Related Information:
  
  Transaction Codes: 
  
  SE37: Function Builder
  SU53: Authorization Check
  SM21: System Log
  SE80: Object Navigator
  
  
  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 specific 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.