How To Fix ON128 - Object type &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 128

• Message text: Object type &1 does not exist

What causes this issue?

There was an attempt to read object type '&V1&' from the database.
However the object type was not found. Either the object type was never
created or it has been deleted from 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?

Check the syntax of the object type. If it is correct then the object
type you require unfortunately no longer exists. If it is incorrect
redo the operation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON128 - Object type &1 does not exist ?

  The SAP error message ON128, which states "Object type &1 does not exist," typically occurs when the system is unable to find a specified object type in the context of a transaction or operation. This error can arise in various scenarios, such as when working with master data, configuration settings, or during the execution of specific transactions.
  Causes:
  
  Incorrect Object Type: The object type specified in the transaction or program does not exist in the system. This could be due to a typo or an incorrect reference.
  Missing Configuration: The object type may not have been configured or created in the system. This is common in custom developments or when new object types are introduced.
  Authorization Issues: The user may not have the necessary authorizations to access the object type, leading to the system not recognizing it.
  Transport Issues: If the object type was recently transported from another system, it may not have been properly