How To Fix ATO_CUSTOMER101 - Package not reassigned. Transport layer of target package must match.

ATO_CUSTOMER101 - Overview

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 101

• Message text: Package not reassigned. Transport layer of target package must match.

Self-Explanatory Message

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ATO_CUSTOMER101 - Details

• The SAP error message ATO_CUSTOMER101: Package not reassigned. Transport layer of target package must match typically occurs when you are trying to reassign a package in the SAP system, and there is a mismatch in the transport layer between the source package and the target package.
  
  Cause:
  
  Transport Layer Mismatch: Each package in SAP is associated with a transport layer. If you attempt to reassign a package to another package that has a different transport layer, this error will occur.
  Development Class Issues: The package you are trying to reassign may belong to a different development class or transport layer than the one you are trying to assign it to.
  System Configuration: The system configuration may not allow for the reassignment of packages across different transport layers.
  
  
  Solution:
  
  
  Check Transport Layers: Verify the transport layers of both the source and target packages. You can do this by navigating to the package in the SAP GUI and