How To Fix CP166 - Not all data objects have been copied

CP166 - Overview

• Message type: E = Error

• Message class: CP - Task list messages: Core data

• Message number: 166

• Message text: Not all data objects have been copied

What causes this issue?

The object that you want to copy contains data objects that cannot be
copied.

Error message extract from SAP system. Copyright SAP SE.

CP166 - Details

• The SAP error message CP166 ("Not all data objects have been copied") typically occurs during the process of copying or transporting data objects, such as when you are trying to transport a request or a task in the SAP system. This error indicates that some of the data objects that were supposed to be copied did not get copied successfully.
  Causes:
  
  Missing Dependencies: The data objects you are trying to copy may have dependencies on other objects that are not included in the transport request.
  Inconsistent State: The source system may be in an inconsistent state, where some objects are not properly activated or are in a locked state.
  Transport Directory Issues: There may be issues with the transport directory or the transport management system (TMS) configuration.
  Authorization Issues: The user performing the transport may not have the necessary authorizations to copy all the required objects.
  Object Type Restrictions: Certain object types may have restrictions or