How To Fix UI051 - Entity type &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: UI - Data Modeler: Messages for repository interfaces

• Message number: 051

• Message text: Entity type &1 does not exist

What causes this issue?

You tried to read the entity type &V1&. However, this entity type does
note exist in the database.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please check the syntax of the ID of the entity type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UI051 - Entity type &1 does not exist ?

  The SAP error message UI051, which states "Entity type &1 does not exist," typically occurs in the context of SAP Fiori or SAP UI5 applications when the system cannot find a specified entity type in the underlying data model or service. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Incorrect Entity Name: The entity type specified in the application or service might be misspelled or incorrectly referenced.
  Service Not Activated: The OData service that contains the entity type may not be activated in the SAP Gateway.
  Model Configuration Issues: The data model in the application may not be correctly configured to include the specified entity type.
  Authorization Issues: The user may not have the necessary authorizations to access the entity type.
  Backend Changes: Changes in the backend system, such as deletion or renaming of the entity type, can lead to this error.
  
  Solutions:
  
  Check Entity Name: Verify that the entity type name specified in the application matches exactly with the name defined in the OData service.
  Activate OData Service:
  
  Go to the SAP Gateway Service Builder (transaction code /IWFND/MAINT_SERVICE).
  Check if the service is active. If not, activate it.
  
  
  Review Data Model: Ensure that the data model in your application is correctly set up and includes the required entity type.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the OData service and the specific entity type.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for any errors related to the OData service and debug accordingly.
  Consult Documentation: Review the documentation for the specific application or service to ensure that all configurations are correct.
  
  Related Information:
  
  OData Services: Familiarize yourself with how OData services work in SAP, including how to create, modify, and activate them.
  SAP Fiori/UI5 Development: Understanding the basics of SAP Fiori and UI5 development can help in troubleshooting issues related to entity types and data binding.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error message.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation.