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

SAP Error Message - Details

• 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.