How To Fix ES121 - The specified object type is unknown

ES121 - Overview

• Message type: E = Error

• Message class: ES - ABAP Workbench: Repository Information System

• Message number: 121

• Message text: The specified object type is unknown

What causes this issue?

The object type you specified to the ABAP/4 Repository Information
System was not found in the table EUOBJINF.

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?

Error message extract from SAP system. Copyright SAP SE.

ES121 - Details

• The SAP error message ES121, which states "The specified object type is unknown," typically occurs when the system cannot recognize or find the object type that is being referenced in a transaction or program. This can happen in various contexts, such as when working with ABAP programs, customizing, or during data processing.
  Causes:
  
  Incorrect Object Type: The object type specified in the transaction or program does not exist or is misspelled.
  Missing Authorization: The user may not have the necessary authorizations to access the specified object type.
  Transport Issues: If the object type was recently transported from another system, it may not have been properly imported or activated.
  Configuration Errors: There may be issues in the configuration settings that define the object types.
  Version Mismatch: The object type may exist in a different version of the system or in a different client.
  
  Solutions:
  
  Check Object Type: Verify that the object type you are trying to access is correctly