How To Fix TK139 - Package cannot be changed from &3 to &4

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 139

• Message text: Package cannot be changed from &3 to &4

What causes this issue?

Changing the package from &V3& to &V4& requires that the object be
assigned to a request with the appropriate request attribute.
The object involved is currently locked in request/task &V1& by user
&V2&. This request does not have the request attribute required for the
object.

System Response

The function terminates.

How to fix this error?

When request/task &V1& and possibly its superordinate request have been
released, the requested changes can be made.
<ZH>Caution</>
Changing the package fundamentally changes transport behaviour. The
possible consequences can be complex and should be considered
thoroughly.
We generally recommend that you do not change the package.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TK139 - Package cannot be changed from &3 to &4 ?

  The SAP error message TK139, which states "Package cannot be changed from &3 to &4," typically occurs when there is an attempt to change the package assignment of an object (like a program, function module, or class) in the SAP system. The error indicates that the object is currently assigned to a package (denoted by &3) and you are trying to change it to a different package (denoted by &4), but this operation is not allowed due to certain restrictions.
  Causes:
  
  Transport Layer Restrictions: The object may be part of a transport layer that does not allow changes to the package assignment.
  Object Type Restrictions: Certain object types have restrictions on changing their package assignments, especially if they are already included in a transport request.
  Development Class Lock: The package you are trying to change to may be locked or restricted for certain users or roles.
  Transport Request Status: If the object is already included in a transport request that is released or in a different status, you may not be able to change its package.
  
  Solutions:
  
  Check Transport Request: Ensure that the object is not included in a transport request that is already released. If it is, you may need to create a new transport request or remove it from the current one.
  Use the Correct Package: If you need to change the package, ensure that you are using the correct package that is allowed for the object type.
  Authorization Check: Verify that you have the necessary authorizations to change the package of the object. You may need to consult with your SAP Basis or security team.
  Development Class Settings: Check the settings of the development class (package) you are trying to assign the object to. Ensure that it is not locked or restricted.
  Consult Documentation: Review SAP documentation or notes related to the specific object type and package management for any additional restrictions or guidelines.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to check the package assignment of objects.
  SAP Notes: Look for relevant SAP Notes that might address specific issues related to package changes and restrictions.
  Transport Management System (TMS): Familiarize yourself with the TMS settings and how they affect package assignments.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.