Cancel Outbound Delivery from custom BO absl

Hi experts ,

I want to cancel Outbound Delivery via custom BO absl because I want to do the following step in one time .

     1. Outbound Delivery > Actions > Undo Released

     2. Warehouse Order > Adjustment Confirmation ---> input cancel Qty

     3. Outbound Delivery > Actions > Cancel

In standard , I must reduce the Qty from Warehouse Order to cancel OD .

To reduce Qty , the status of record must be Finished and Not Release .

I found the standard UI .

In standard , The Bo of Warehouse Order was "SitelogisticLot "and the field need to reduce Qty was "ConfirmQuantity" .

When I assign the data to ConfirmQuantity ,the error occurs "Processing not possible due to status Finished " .

※ I notice the point in standard , I must click Enable Entry button to reduce Qty . In this button , connect one action .

I want to know is it possible or not to cancel Outbound Delivery ?

If it is possible ,  which step need to add ?

Best Regards ,

pole