How To Fix TR303 - &1 is not a workbench request or customizing request

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 303

• Message text: &1 is not a workbench request or customizing request

What causes this issue?

You need to specify a Workbench or Customizing request for this
function.
You cannot use tasks, transports of copies, or relocations here.

System Response

The function terminates.

How to fix this error?

Check your entry, correct it if necessary, and repeat the function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR303 - &1 is not a workbench request or customizing request ?

  The SAP error message TR303 indicates that the transport request you are trying to work with is not recognized as a valid workbench request or customizing request. This can occur for several reasons, and understanding the cause is essential for resolving the issue.
  Causes of TR303 Error
  
  
  Incorrect Request Type: The transport request you are trying to use may not be a workbench or customizing request. It could be a transport request of a different type, such as a transport of copies.
  
  
  Request Status: The transport request may be in a status that does not allow it to be used, such as being released or not yet released.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access or use the transport request.
  
  
  Transport Directory Issues: There may be issues with the transport directory or the transport management system configuration.
  
  
  Incorrect Transport Request Number: The transport request number you are using may be incorrect or mistyped.
  
  
  Solutions to TR303 Error
  
  
  Verify Request Type: Check the type of the transport request. Ensure that it is a workbench request (type 'K') or a customizing request (type 'C'). You can do this by using transaction code SE09 or SE10 to view the transport requests.
  
  
  Check Request Status: Ensure that the transport request is in the correct status. If it is released, you may need to create a new request or use a different one that is still modifiable.
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to access and use the transport request. You may need to consult with your SAP security team.
  
  
  Review Transport Directory: Check the transport directory settings and ensure that they are correctly configured. You can use transaction code STMS to access the transport management system and verify the configuration.
  
  
  Correct Transport Request Number: Double-check the transport request number you are using. Make sure it is entered correctly and corresponds to an existing request.
  
  
  Consult SAP Notes: If the issue persists, consult SAP Notes for any known issues or patches related to the TR303 error. You can search for relevant notes in the SAP Support Portal.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SE09: Workbench Organizer
  SE10: Customizing Organizer
  STMS: Transport Management System
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on transport requests and their management.
  
  
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify the cause of the TR303 error and implement the appropriate solution.