How To Fix EEWA_WDOC223 - Invalid signature for the function module of the activity!

SAP Error Message - Details

• Message type: E = Error

• Message class: EEWA_WDOC - Message Class for Waste Disposal Order Cockpit

• Message number: 223

• Message text: Invalid signature for the function module of the activity!

What causes this issue?

The function module does not have a valid signature in order to be used
in the work areas of the waste disposal order cockpit. The following
parameters must be defined for the function module:
Import Parameter:
PAR_COCKPIT type ref to IF_EEWA_WDOC_COCKPIT
Export Parameter:
PAR_APPLICATION type ref to IF_EEWA_WDOC_APPLICATION
There must not be any other obligatory parameters defined for this
function module. Additional (optional) parameters will be disregarded.

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?

Adjust the signature of the function module or use a function module
with a compatible signature.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EEWA_WDOC223 - Invalid signature for the function module of the activity! ?

  The SAP error message EEWA_WDOC223 indicates that there is an issue with the signature of a function module related to a specific activity in the SAP system. This error typically arises in the context of workflows or when executing certain business processes that rely on function modules.
  Causes:
  
  Function Module Changes: The function module being called may have been changed or modified, leading to a mismatch in the expected signature (parameters, return types, etc.).
  Transport Issues: If the function module was transported from one system to another (e.g., from development to production), there may have been issues during the transport process that caused the signature to become invalid.
  Version Mismatch: There may be a version mismatch between the workflow definition and the function module it is trying to call.
  Authorization Issues: Sometimes, the user executing the workflow may not have the necessary authorizations to execute the function module, leading to this error.
  
  Solutions:
  
  
  Check Function Module: Verify the function module's signature in the SAP system. Ensure that the parameters and return types match what is expected by the workflow or calling program.
  
  Use transaction SE37 to check the function module.
  
  
  
  Transport Check: If the function module was recently transported, check the transport logs for any errors or warnings. Ensure that the transport was successful and that all necessary objects were included.
  
  
  Workflow Definition: Review the workflow definition to ensure that it is correctly configured to call the function module. You can use transaction SWDD to check the workflow.
  
  
  Re-activate the Workflow: Sometimes, simply re-activating the workflow can resolve the issue. This can be done in transaction SWDD.
  
  
  Check Authorizations: Ensure that the user executing the workflow has the necessary authorizations to call the function module. You can check this using transaction SU53 after the error occurs.
  
  
  Debugging: If the issue persists, consider debugging the workflow to identify where the error occurs. You can set breakpoints in the function module to see if it is being called correctly.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  Documentation: Review the documentation for the specific workflow and function module to ensure that you are using them correctly.
  
  If the problem continues after trying these solutions, it may be necessary to involve your SAP Basis or development team for further investigation.