How To Fix WL751 - No return values exist

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 751

• Message text: No return values exist

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 WL751 - No return values exist ?

  The SAP error message WL751 "No return values exist" typically occurs in the context of SAP Workflow or when dealing with function modules that are expected to return values but do not. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Function Module Issues: The function module being called may not be returning any values due to incorrect parameters or logic within the function.
  Workflow Configuration: In the context of workflows, this error can occur if the workflow is expecting return values from a task or method that does not provide them.
  Data Issues: There may be no data available to return, which can happen if the selection criteria do not match any records.
  Authorization Issues: Sometimes, the user executing the function may not have the necessary authorizations to access the data, leading to no return values.
  
  Solutions:
  
  
  Check Function Module: 
  
  Review the function module being called to ensure it is correctly implemented and that it is supposed to return values.
  Test the function module in transaction SE37 to see if it returns values when executed with the same parameters.
  
  
  
  Review Workflow Configuration:
  
  If this error occurs in a workflow, check the workflow definition to ensure that the tasks are correctly configured to return values.
  Ensure that the methods or tasks that are expected to return values are properly set up in the workflow.
  
  
  
  Parameter Validation:
  
  Validate the input parameters being passed to the function module or workflow task. Ensure they are correct and that they should logically return values.
  
  
  
  Data Availability:
  
  Check the underlying data to ensure that there are records that meet the criteria for the function or workflow task. If no records exist, the function will not return any values.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to execute the function or access the data. Use transaction SU53 to check for authorization issues.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the workflow or function module to trace the execution and identify where the return values are being lost.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function module or workflow you are using.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE37 (Function Module), SWDD (Workflow Builder), and SWI1 (Workflow Overview) for troubleshooting.
  Documentation: Review the documentation for the specific function module or workflow to understand its expected behavior and return values.
  
  By following these steps, you should be able to identify the cause of the WL751 error and implement a suitable solution. If the problem persists, consider reaching out to SAP support or consulting with a technical expert familiar with your specific SAP environment.