How To Fix SWF_RUN522 - Error when calling an external function

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 522

• Message text: Error when calling an external function

What causes this issue?

Calling of an external function failed. In most cases, this can be
traced back to an incorrect configuration.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

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Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_RUN522 - Error when calling an external function ?

  The SAP error message SWF_RUN522 indicates that there is an issue when calling an external function in a workflow. This error typically arises in the context of SAP Business Workflow when the system is unable to execute a function module or method that is defined in the workflow.
  Causes of SWF_RUN522 Error
  
  Function Module Not Found: The specified function module may not exist in the system or may not be activated.
  Authorization Issues: The user executing the workflow may not have the necessary authorizations to call the external function.
  Incorrect Parameters: The parameters being passed to the function module may be incorrect or not matching the expected data types.
  System Configuration: There may be issues with the configuration of the workflow or the external function.
  Network Issues: If the function is supposed to call an external system, network issues could prevent the call from being successful.
  
  Solutions to SWF_RUN522 Error
  
  
  Check Function Module:
  
  Verify that the function module exists in the system. You can do this by using transaction code SE37 or SE80.
  Ensure that the function module is activated.
  
  
  
  Review Authorizations:
  
  Check the user’s authorizations to ensure they have the necessary permissions to execute the function module. You can use transaction SU53 to analyze authorization issues.
  
  
  
  Validate Parameters:
  
  Review the parameters being passed to the function module. Ensure that they match the expected input types and formats.
  
  
  
  Debugging:
  
  Use transaction SWI1 to analyze the workflow instance and check for any additional error messages or logs that can provide more context.
  You can also use transaction SWF_XI to check the workflow logs for more detailed error information.
  
  
  
  Check Workflow Configuration:
  
  Review the workflow configuration to ensure that it is set up correctly and that the external function is properly integrated.
  
  
  
  Network and Connectivity:
  
  If the function is supposed to call an external system, check the network connectivity and ensure that the external system is reachable.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SWI1: Workflow Overview
  SWF_XI: Workflow Logs
  SE37: Function Module
  SE80: Object Navigator
  SU53: Authorization Check
  
  
  
  SAP Notes: Check SAP Notes related to SWF_RUN522 for any specific patches or updates that may address known issues.
  
  
  Documentation: Refer to the SAP Help Portal for documentation on workflows and function modules for more detailed guidance.
  
  
  By following these steps, you should be able to diagnose and resolve the SWF_RUN522 error in your SAP system. If the issue persists, consider reaching out to SAP support for further assistance.