How To Fix TR_AUSL191 - Supplement change piece list is not modifiable; request of type &1 exists

TR_AUSL191 - Overview

• Message type: E = Error

• Message class: TR_AUSL - Software Delivery Composer Messages

• Message number: 191

• Message text: Supplement change piece list is not modifiable; request of type &1 exists

What causes this issue?

A delivery request of type &V1& already exists for delivery component
&V2& (in delivery &V3&).
This means that you cannot make any more changes to the supplement
change piece list.

System Response

The action terminates.

How to fix this error?

After you have generated the contents of the delivery request of type
&V1& for the first time, you cannot make any more changes to the
supplement change piece list.
Use a delivery request of type &V1& for the action you want to perform.

Error message extract from SAP system. Copyright SAP SE.

TR_AUSL191 - Details

• The SAP error message TR_AUSL191 indicates that there is an issue with modifying a supplement change piece list because a request of a certain type already exists. This typically occurs in the context of transport requests and change management in SAP systems.
  
  Cause:
  The error is usually caused by one of the following scenarios:
  
  Existing Transport Request: There is already an existing transport request of the specified type (e.g., workbench request, customizing request) that is preventing modifications to the piece list.
  Locking Mechanism: The system may have a locking mechanism in place that prevents changes to the piece list while another request is being processed.
  Incorrect Status: The piece list may be in a status that does not allow modifications, such as being released or already included in a transport.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Requests:
  
  Use transaction code SE09 or SE10 to check for existing transport requests. Look for requests