How To Fix TR857 - Cannot change task type

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 857

• Message text: Cannot change task type

What causes this issue?

You can only change the request type if this is permitted by the type
of objects in the request.
The requirement is not met in this case.

System Response

The function terminates.

How to fix this error?

In the hierarchical request overview, choose the function
<LS>Request/task</> -> <LS>Overall check</> -> <LS>Check request
consistency</>.
If the task contains errors, a list of the incorrectly assigned objects
appears with detailed information on how the errors can be corrected.
For more information on the Transport Organizer functions, see the SAP
Library under <LS>BC - Basis Components</> -> <LS>Change and Transport
System</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR857 - Cannot change task type ?

  The SAP error message TR857, which states "Cannot change task type," typically occurs when there is an attempt to change the type of a transport request that is not allowed. This can happen in various scenarios, such as when trying to change a transport request from a customizing request to a workbench request or vice versa.
  Causes:
  
  Incorrect Transport Request Type: The transport request type is set incorrectly, and the system does not allow changing it after certain actions have been performed.
  Transport Request Status: The transport request may be in a status that does not permit changes (e.g., released or already imported).
  Authorization Issues: The user may not have the necessary authorizations to change the transport request type.
  System Configuration: Certain configurations in the SAP system may restrict changes to transport request types.
  
  Solutions:
  
  Check Transport Request Status: Ensure that the transport request is in a modifiable state. If it is released or already imported, you may need to create a new transport request.
  Create a New Transport Request: If changing the type is not possible, consider creating a new transport request with the correct type and moving the objects to that request.
  Authorization Check: Verify that you have the necessary authorizations to modify transport requests. If not, contact your SAP security administrator.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this issue. Sometimes, specific patches or updates can resolve underlying problems.
  System Configuration Review: If you have access, review the transport management configuration to ensure that there are no restrictions in place that prevent changing transport request types.
  
  Related Information:
  
  Transport Management System (TMS): Understanding how TMS works can help in managing transport requests effectively.
  SAP Documentation: Refer to the official SAP documentation for detailed information on transport requests and their management.
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have faced similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or open a support ticket with SAP for further assistance.