How To Fix PAK133 - A main package cannot be a subpackage of a development package

SAP Error Message - Details

• Message type: E = Error

• Message class: PAK - Package API / Package Tools

• Message number: 133

• Message text: A main package cannot be a subpackage of a development package

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PAK133 - A main package cannot be a subpackage of a development package ?

  The SAP error message PAK133 indicates that there is an issue with the structure of development packages in the SAP system. Specifically, it states that a main package cannot be a subpackage of a development package. This error typically arises when there is an attempt to create a package hierarchy that violates the rules of package organization in SAP.
  Cause:
  
  Package Hierarchy Violation: In SAP, a main package (also known as a development package) cannot be a subpackage of another development package. This is because main packages are intended to be top-level containers for development objects, while subpackages are meant to organize objects within a main package.
  Incorrect Package Assignment: When creating or modifying packages, if a main package is mistakenly assigned as a subpackage of another main package, this error will occur.
  
  Solution:
  To resolve the PAK133 error, you can follow these steps:
  
  
  Check Package Structure:
  
  Go to the transaction code SE80 (Object Navigator) or SE21 (Package Builder).
  Review the package hierarchy to ensure that no main package is incorrectly set as a subpackage.
  
  
  
  Reassign Packages:
  
  If you find that a main package is incorrectly assigned as a subpackage, you will need to change its assignment.
  You can do this by editing the package properties and ensuring it is set as a main package.
  
  
  
  Create New Packages:
  
  If necessary, create a new main package and move the relevant objects to this new package, ensuring that the hierarchy remains valid.
  
  
  
  Transport Requests:
  
  If the package structure is part of a transport request, ensure that the transport request is correctly configured and that the packages are properly assigned before releasing the transport.
  
  
  
  Related Information:
  
  Package Types: In SAP, there are different types of packages, including main packages and subpackages. Main packages can contain other subpackages, but subpackages cannot contain main packages.
  Development Objects: Packages are used to organize development objects such as programs, function modules, classes, and more. Proper organization is crucial for maintaining a clean and manageable development environment.
  SAP Documentation: For more detailed information on package management and best practices, refer to the official SAP documentation or the SAP Help Portal.
  
  By following these steps and understanding the package structure, you should be able to resolve the PAK133 error effectively.