ATO_CUSTOMER303 - Unassignment from transport request is currently not allowed.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 303

• Message text: Unassignment from transport request is currently not allowed.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ATO_CUSTOMER303 - Unassignment from transport request is currently not allowed. ?

  The SAP error message ATO_CUSTOMER303, which states "Unassignment from transport request is currently not allowed," typically occurs when there is an attempt to unassign an object from a transport request that is not permitted due to certain restrictions or conditions in the SAP system.
  Cause:
  
  Transport Request Status: The transport request may be in a status that does not allow unassignment. For example, if the transport request is already released or has been imported into another system, unassignment may not be allowed.
  Object Locking: The object you are trying to unassign may be locked by another user or process, preventing changes.
  System Configuration: Certain configurations in the SAP system may restrict unassignment actions based on organizational policies or transport management settings.
  Transport Layer: The transport layer settings may also impose restrictions on unassigning objects from transport requests.
  
  Solution:
  
  Check Transport Request Status: Verify the status of the transport request. If it is released or imported, you may need to create a new transport request for any further changes.
  Unlock Objects: If the object is locked, check with your system administrator or the user who has locked the object to unlock it.
  Review Configuration: Consult with your SAP Basis team to review the transport management configuration and see if there are any restrictions in place that need to be adjusted.
  Create a New Transport Request: If unassignment is not possible, consider creating a new transport request for the changes you need to make.
  Use Transaction SE09/SE10: Use transaction codes SE09 or SE10 to manage transport requests and check their status. You can also see the objects assigned to the transport request and their current status.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Transport Management System (TMS): Familiarize yourself with the Transport Management System in SAP, as it governs how transport requests are created, managed, and moved between systems.
  User Authorizations: Ensure that you have the necessary authorizations to perform actions on transport requests. Lack of proper authorizations can also lead to errors.
  
  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.