Message type: E = Error
Message class: SIW - Service Implementation Workbench
Message number: 119
Message text: Extension class &1 is invalid in structure &2
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SIW119
- Extension class &1 is invalid in structure &2 ?The SAP error message SIW119 indicates that there is an issue with an extension class that is considered invalid in a specific structure. This error typically arises in the context of SAP's Business Add-Ins (BAdIs) or enhancement frameworks, where custom or extended functionality is being implemented.
Cause: Invalid Extension Class: The extension class specified in the error message is not recognized or is not properly defined in the system. Incorrect Structure: The structure in which the extension class is being used may not support the specified extension class. Transport Issues: If the extension class was recently transported from another system, it may not have been activated or may have dependencies that are not met. Naming or Typing Errors: There could be a typo in the name of the extension class or structure, or the class may not exist in the specified namespace.
Solution: Check Extension Class: Verify that the extension class exists and is correctly defined in
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