How To Fix /UI2/CDM3_EXP204 - Calculating CDM JSON for &1 entity &2 (&3/&4)

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CDM3_EXP -

• Message number: 204

• Message text: Calculating CDM JSON for &1 entity &2 (&3/&4)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CDM3_EXP204 - Calculating CDM JSON for &1 entity &2 (&3/&4) ?

  The SAP error message /UI2/CDM3_EXP204 typically indicates an issue related to the calculation of the Core Data Model (CDM) JSON for a specific entity in the SAP Fiori/UI5 environment. This error can arise due to various reasons, including issues with the underlying data model, configuration problems, or issues with the OData service.
  Cause
  
  Data Model Issues: There may be inconsistencies or errors in the data model definition for the specified entity.
  OData Service Problems: The OData service might not be properly configured or might be returning unexpected results.
  Authorization Issues: The user may not have the necessary authorizations to access the data for the specified entity.
  Backend Errors: There could be issues in the backend system that prevent the data from being retrieved correctly.
  Configuration Errors: Incorrect settings in the Fiori/UI5 application configuration can lead to this error.
  
  Solution
  
  
  Check the OData Service: 
  
  Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test the OData service directly. Ensure that it returns the expected results for the entity in question.
  Check for any errors or warnings in the service response.
  
  
  
  Review the Data Model:
  
  Verify the definition of the entity in the data model. Ensure that all required fields are correctly defined and that there are no inconsistencies.
  Check for any changes made to the data model that might not have been properly activated.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the data for the specified entity. This can be checked in the user roles and authorizations.
  
  
  
  Backend System Check:
  
  Investigate any potential issues in the backend system that might affect data retrieval. Check for any relevant error logs or dumps in the backend system.
  
  
  
  Configuration Review:
  
  Review the configuration settings of the Fiori/UI5 application. Ensure that all necessary parameters are correctly set.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the application to trace where the error occurs. This may provide more insight into the root cause.
  
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Community Forums: Look for discussions in SAP Community or other forums where similar issues have been reported and resolved.
  Documentation: Review the official SAP documentation for Fiori/UI5 and OData services for best practices and troubleshooting tips.
  
  If the issue continues after following these steps, it may be beneficial to reach out to SAP support for further assistance.