How To Fix WD446 - Source definition is identical to the target definition

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 446

• Message text: Source definition is identical to the target definition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WD446 - Source definition is identical to the target definition ?

  Certainly! Here's a detailed explanation of the SAP error message WD446: Source definition is identical to the target definition:
  
  Error Message
  WD446: Source definition is identical to the target definition
  
  Cause
  This error occurs in the context of Web Dynpro ABAP when you try to map or assign a source context node or attribute to a target context node or attribute, but both the source and target are exactly the same object (i.e., they refer to the same context node or attribute).
  In other words, the system detects that you are trying to map a context node or attribute to itself, which is logically redundant and not allowed.
  Typical scenarios include:
  
  In context mapping between components or views, the source and target context nodes or attributes are the same.
  In context mapping within the same component or view, the source and target are identical.
  When creating context mapping in component usage or interface, the same context node or attribute is selected as both source and target.
  
  
  Solution
  To resolve this error:
  
  
  Check your context mapping carefully:
  
  Ensure that the source and target context nodes or attributes are different.
  If you want to pass data from one context node to another, make sure they are distinct nodes or attributes.
  
  
  
  Correct the mapping:
  
  If you intended to map different nodes or attributes, select the correct source and target.
  If the mapping is unnecessary because source and target are the same, remove the mapping.
  
  
  
  Review component interface and usage:
  
  When mapping context nodes or attributes between components, verify that you are not mapping a node or attribute to itself.
  
  
  
  Check for copy-paste errors:
  
  Sometimes, this error happens due to accidental copy-paste of the same node or attribute in both source and target fields.
  
  
  
  
  Related Information
  
  Context Mapping in Web Dynpro ABAP: Context mapping is used to pass data between components or views. It requires source and target to be different context nodes or attributes.
  SAP Note / Documentation: There might be SAP Notes related to this error if it occurs in specific versions or scenarios.
  Web Dynpro Component Usage: When using component usage, context mapping is mandatory to pass data, but source and target must be different.
  Debugging: Use the Web Dynpro debugger or check the component interface to verify context nodes and attributes.
  
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Source and target context definitions are identical (same node or attribute).
  
  
  Effect
  Mapping is invalid; system throws WD446 error.
  
  
  Solution
  Ensure source and target context nodes/attributes are different; correct or remove mapping.
  
  
  
  
  If you provide the exact scenario or code snippet where this error occurs, I can help you with a more specific solution.