How To Fix SADL_GW_V4_MODEL004 - Do not use conversion ext &1 here.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_V4_MODEL - OData Version 4 Enabling: Model Messages

• Message number: 004

• Message text: Do not use conversion ext &1 here.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_V4_MODEL004 - Do not use conversion ext &1 here. ?

  The SAP error message SADL_GW_V4_MODEL004 with the description "Do not use conversion ext &1 here" typically occurs in the context of SAP Gateway and the SAP ABAP programming environment, particularly when working with the SAP Data Access Layer (SADL) and OData services.
  Cause:
  This error usually arises when there is an attempt to use a conversion exit in a context where it is not allowed. Conversion exits are used in SAP to convert data types (for example, converting a date from internal format to external format). However, in certain scenarios, especially when dealing with OData services, the use of conversion exits can lead to issues with data representation and serialization.
  Solution:
  To resolve this error, you should:
  
  
  Review the Code: Check the ABAP code where the error is occurring. Look for any usage of conversion exits (like CONVERT_TO_LOCAL_CURRENCY, CONVERT_DATE_TO_EXTERNAL, etc.) in the context of the OData service or SADL model.
  
  
  Remove Conversion Exits: If you find any conversion exits being used, remove them from the code. Instead, ensure that the data is being handled in its native format, as OData services should work with the internal representation of data.
  
  
  Use Proper Data Types: Ensure that the data types being used in your OData model are compatible with the expected formats. For example, if you are dealing with dates, make sure you are using the correct date format that OData expects.
  
  
  Test the Changes: After making the necessary changes, test the OData service to ensure that the error no longer occurs and that the data is being processed correctly.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for SADL and OData services for best practices and guidelines on data handling.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Debugging: Use the ABAP debugger to step through the code and identify the exact point where the error is triggered, which can provide more context for troubleshooting.
  
  By following these steps, you should be able to resolve the SADL_GW_V4_MODEL004 error and ensure that your OData service functions correctly without the use of unsupported conversion exits.