How To Fix WFF_FORM_SERVER106 - CL_WFF_XML: Method INSERT_CHILD( ); error in element &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 106

• Message text: CL_WFF_XML: Method INSERT_CHILD( ); error in element &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WFF_FORM_SERVER106 - CL_WFF_XML: Method INSERT_CHILD( ); error in element & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WFF_FORM_SERVER106 CL_WFF_XML: Method INSERT_CHILD( ); error in element &?
  
  Cause:
  This error typically occurs during workflow processing when the workflow engine tries to manipulate the XML structure of the workflow container or task container. The method INSERT_CHILD() of class CL_WFF_XML is used to insert an XML node (child element) into an existing XML document.
  The error indicates that the insertion of a child element into the XML structure failed. Common causes include:
  
  Invalid XML structure or malformed XML: The XML element where the child is to be inserted might be missing, corrupted, or not properly initialized.
  Incorrect or missing element name: The placeholder & in the error message usually represents the element name or node where the insertion failed. If this is empty or invalid, the method cannot insert the child.
  Workflow container inconsistency: The workflow container or task container might have inconsistent or unexpected data types or missing elements.
  Authorization or system issues: Rarely, authorization problems or system inconsistencies can cause XML manipulation failures.
  Custom workflow code or enhancements: If custom code or enhancements manipulate the workflow container XML directly, errors in that code can cause this issue.
  
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Workflow Container:
  
  Use transaction SWI1 or SWIA to analyze the workflow instance.
  Check the container elements and their values for correctness.
  Ensure that all required container elements are present and correctly typed.
  
  
  
  Analyze the Workflow Log:
  
  Use transaction SWI1 or SWI2_FREQ to find the workflow instance.
  Review the workflow log for detailed error messages and the exact element causing the problem.
  
  
  
  Debug the Workflow:
  
  If you have access, debug the workflow runtime to see where INSERT_CHILD() is called.
  Check the parameters passed to the method, especially the element name and XML structure.
  
  
  
  Check for Custom Code:
  
  Review any custom workflow methods, container modifications, or enhancements that manipulate XML.
  Correct any errors in XML handling or container element names.
  
  
  
  Recreate or Reset the Workflow Instance:
  
  Sometimes, the workflow instance might be corrupted.
  Cancel and restart the workflow instance if possible.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WFF_FORM_SERVER106 or CL_WFF_XML INSERT_CHILD.
  Apply any relevant patches or corrections.
  
  
  
  
  Related Information:
  
  Class: CL_WFF_XML is a standard SAP class used for XML manipulation in workflows.
  Method: INSERT_CHILD() inserts a child XML node into an existing XML document.
  Transaction Codes:
  
  SWI1 - Workflow log analysis
  SWIA - Workflow administration
  SWU3 - Workflow customizing and checks
  
  
  SAP Notes: Check SAP Support Portal for notes related to workflow XML errors.
  Common Scenario: This error often appears when workflows are transported between systems and container elements are missing or inconsistent.
  
  
  If you provide the exact element name or more context (e.g., workflow type, step where error occurs), I can help you further narrow down the cause and solution.