Message type: E = Error
Message class:  ATO_CUSTOMER - ATO Messages for the End User 
Message number: 200
Message text: Register a transport request for package &1.
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The SAP error message ATO_CUSTOMER200, which states "Register a transport request for package &1," typically occurs when you are trying to make changes to a development object that is part of a package that is not assigned to a transport request. This can happen in various scenarios, such as when you are trying to activate or modify an object in the ABAP Workbench (SE80, SE11, etc.) or when working with customizing settings.
Cause: Missing Transport Request: The object you are trying to modify is part of a package that requires a transport request to be registered before changes can be made. Development Class: The object belongs to a development class (package) that is not assigned to a transport request. Transport Layer Issues: There may be issues with the transport layer configuration in your SAP system.
Solution: To resolve the ATO_CUSTOMER200 error, follow these steps: Create a Transport Request: Go to transaction SE09 or SE10 (Transport Organizer). Create a new
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