How To Fix SADL_GW_MODEL010 - Cannot change Type via Custom Type.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_MODEL - SADL Gateway Integration: Model Errors

• Message number: 010

• Message text: Cannot change Type via Custom Type.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_MODEL010 - Cannot change Type via Custom Type. ?

  The SAP error message SADL_GW_MODEL010 with the description "Cannot change Type via Custom Type" typically occurs in the context of SAP Gateway and the SAP ABAP programming environment when there is an issue with the data model or the way custom types are defined and used in the service.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Inconsistent Type Definitions: The custom type defined in the service does not match the expected type in the underlying data model. This can happen if the type is changed after it has been used in the service definition.
  
  
  Service Metadata Issues: If the service metadata is not properly updated or if there are inconsistencies in the service definition, it can lead to this error.
  
  
  Improper Use of Custom Types: If a custom type is being used in a way that is not supported by the SAP Gateway framework, such as trying to change the type of a field that is already defined in the model.
  
  
  Solution:
  To resolve the SADL_GW_MODEL010 error, you can follow these steps:
  
  
  Check Type Definitions: Review the custom types defined in your service and ensure that they are consistent with the underlying data model. Make sure that the types are correctly defined and that there are no discrepancies.
  
  
  Update Service Metadata: If you have made changes to the data model or the types, ensure that you regenerate the service metadata. You can do this by:
  
  Going to the SAP Gateway Service Builder (transaction code /IWFND/MAINT_SERVICE).
  Selecting your service and choosing the option to regenerate the metadata.
  
  
  
  Review Service Implementation: Check the implementation of your service to ensure that you are not trying to change the type of a field that is already defined. If necessary, modify the implementation to align with the defined types.
  
  
  Clear Cache: Sometimes, clearing the cache can help resolve issues related to outdated metadata. You can do this by using transaction /IWFND/CACHE_CLEANUP.
  
  
  Check for Dependencies: Ensure that there are no dependencies or references to the old type that might be causing the issue. If necessary, update or remove these references.
  
  
  Consult Documentation: If the issue persists, refer to the SAP documentation or community forums for additional guidance on handling custom types in SAP Gateway.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Gateway Documentation: Review the official SAP Gateway documentation for best practices on defining and using custom types.
  
  By following these steps, you should be able to identify and resolve the cause of the SADL_GW_MODEL010 error in your SAP environment.