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

/UI2/CDM3_EXP204 - Overview

• 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