How To Fix SADL_GW_DT_SB_API023 - Type &1 of elem. &2 of &3 does not correspond to type in class &4

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_SB_API - SADL Gateway integration: Messages for design time API

• Message number: 023

• Message text: Type &1 of elem. &2 of &3 does not correspond to type in class &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_SB_API023 - Type &1 of elem. &2 of &3 does not correspond to type in class &4 ?

  The SAP error message SADL_GW_DT_SB_API023 typically indicates a type mismatch in the data model when using the SAP Gateway Service Builder (SADL). This error occurs when the type of an element in your data model does not match the expected type defined in the corresponding class.
  Cause:
  
  Type Mismatch: The most common cause of this error is that the data type of an element in your service definition does not match the data type defined in the ABAP class or structure that is being referenced.
  Changes in Data Model: If there have been recent changes to the underlying data model or the ABAP class, it may lead to inconsistencies.
  Incorrect Mapping: The mapping between the data model and the ABAP class may not be correctly defined, leading to type discrepancies.
  
  Solution:
  
  Check Data Types: Verify the data types of the elements in your service definition and compare them with the types defined in the ABAP class. Ensure that they match exactly.
  Update Service Definition: If there have been changes in the ABAP class, you may need to regenerate or update the service definition in the Gateway Service Builder to reflect those changes.
  Rebuild the Service: Sometimes, rebuilding the service or reactivating it can resolve inconsistencies. You can do this by:
  
  Going to the Gateway Service Builder (transaction code SEGW).
  Selecting your service and choosing the option to rebuild or regenerate.
  
  
  Check Annotations: If you are using annotations in your data model, ensure that they are correctly defined and correspond to the expected types.
  Debugging: If the issue persists, consider debugging the service to trace where the type mismatch is occurring. This can provide insights into which specific element is causing the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review the SAP Gateway documentation for best practices on defining data models and handling type definitions.
  Community Forums: Engage with the SAP Community or forums where similar issues may have been discussed, as other users may have encountered and resolved the same error.
  
  By following these steps, you should be able to identify and resolve the type mismatch causing the SADL_GW_DT_SB_API023 error.