How To Fix WFF_FORM_SERVER403 - Internal error: CL_WFF_FORM_DATA_XML invalid (GUID missing)

SAP Error Message - Details

• Message type: E = Error

• Message class: WFF_FORM_SERVER - Web Financials Forms: Form Server

• Message number: 403

• Message text: Internal error: CL_WFF_FORM_DATA_XML invalid (GUID missing)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WFF_FORM_SERVER403 - Internal error: CL_WFF_FORM_DATA_XML invalid (GUID missing) ?

  The SAP error message:
  WFF_FORM_SERVER403 Internal error: CL_WFF_FORM_DATA_XML invalid (GUID missing)
  typically occurs in the context of SAP Workflow Forms (WFF) when the system tries to process or load a workflow form but encounters an issue related to the GUID (Globally Unique Identifier) that is expected to be present in the form data XML.
  
  Cause
  
  Missing or invalid GUID in the workflow form data XML: The class CL_WFF_FORM_DATA_XML is responsible for handling the XML data of workflow forms. It expects a valid GUID to identify the form instance uniquely.
  The error indicates that the GUID is either missing or not correctly passed to the form processing logic.
  This can happen due to:
  
  Corrupted or incomplete form data.
  Incorrect or incomplete workflow container data.
  Issues in the workflow runtime where the form instance is not properly created or linked.
  Custom developments or modifications that do not correctly handle the GUID.
  Transport or system inconsistencies where the form or workflow definitions are out of sync.
  
  
  
  
  Solution
  
  
  Check the Workflow Container and Form Binding:
  
  Verify that the workflow container has the correct data elements and that the GUID is properly passed to the form.
  Ensure that the form interface parameters include the GUID and that it is correctly populated.
  
  
  
  Check the Form Definition and Deployment:
  
  Make sure the form is correctly deployed and active in the system.
  Re-import or re-activate the form if necessary.
  
  
  
  Debug the Workflow and Form Processing:
  
  Use transaction SWUS or SWI1 to check the workflow logs and identify where the GUID is missing.
  Debug the class CL_WFF_FORM_DATA_XML to see why the GUID is not found or invalid.
  
  
  
  Check for OSS Notes:
  
  Search SAP OSS Notes for this specific error message or related issues.
  Some known SAP Notes address bugs or provide patches related to workflow form GUID handling.
  
  
  
  Recreate or Reset the Workflow Instance:
  
  If the workflow instance is corrupted, consider restarting or recreating the workflow instance.
  
  
  
  Check for Custom Code:
  
  If there is custom code or enhancements related to workflow forms, verify that the GUID handling is implemented correctly.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SWUS - Workflow Runtime Errors
  SWI1 - Workflow Log
  SWDD - Workflow Builder
  SE80 - Object Navigator (to check form and class)
  SE24 - Class Builder (to check CL_WFF_FORM_DATA_XML)
  
  
  
  SAP Notes:
  
  Search for notes with keywords: WFF_FORM_SERVER403, CL_WFF_FORM_DATA_XML, GUID missing
  Example notes might include fixes for workflow form runtime errors.
  
  
  
  SAP Help and Documentation:
  
  SAP Workflow documentation on form integration.
  SAP Help Portal for Workflow Forms and GUID usage.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing or invalid GUID in workflow form XML data handled by CL_WFF_FORM_DATA_XML.
  
  
  Solution
  Verify workflow container and form bindings, check form deployment, debug workflow, apply SAP Notes, and fix custom code if any.
  
  
  Related Info
  Use transactions SWUS, SWI1, check SAP Notes, and debug class CL_WFF_FORM_DATA_XML.
  
  
  
  
  If you provide more context (e.g., workflow type, form technology used, recent changes), I can help tailor the troubleshooting steps further.