How To Fix /UI2/CDMFCC081 - Invalid &1 &2: Does not match Schema: &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CDMFCC -

• Message number: 081

• Message text: Invalid &1 &2: Does not match Schema: &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CDMFCC081 - Invalid &1 &2: Does not match Schema: &3 ?

  The SAP error message /UI2/CDMFCC081 Invalid &1 &2: Does not match Schema: &3 typically indicates that there is a mismatch between the data being processed and the expected schema defined in the system. This error is often encountered in the context of SAP Fiori applications or when dealing with OData services.
  Cause:
  
  Data Mismatch: The data being sent to the backend does not conform to the expected structure defined in the OData service schema. This could be due to incorrect data types, missing fields, or additional unexpected fields.
  Service Definition Changes: If the OData service has been modified (e.g., fields added or removed) and the frontend application is still using the old version, this can lead to schema mismatches.
  Incorrect Mapping: If there is a mapping issue between the frontend and backend, such as incorrect field names or types, this error can occur.
  Versioning Issues: If there are multiple versions of the OData service and the application is calling an outdated version, it may not match the current schema.
  
  Solution:
  
  Check Data Structure: Review the data being sent to the OData service. Ensure that it matches the expected schema, including data types and required fields.
  Update Frontend: If the OData service has been updated, ensure that the frontend application is also updated to reflect these changes. This may involve regenerating the frontend artifacts or updating the application code.
  Review OData Service: Use transaction code /IWFND/MAINT_SERVICE to check the OData service definition and ensure that it is correctly configured and active.
  Debugging: Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test the OData service directly. This can help identify if the issue is with the service itself or the way it is being called from the frontend.
  Check for Customizations: If there are any custom implementations or enhancements, review them to ensure they are not causing the mismatch.
  Consult Documentation: Refer to the SAP documentation for the specific OData service to understand the expected input and output formats.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide guidance on this error message.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /IWFND/MAINT_SERVICE, /IWFND/GW_CLIENT, and /UI2/FLP for troubleshooting Fiori Launchpad issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.