Diagnosis
The delivery quantity of all batch split items exceeds the originaldelivery quantity before you go to the batch split screen.
When the system increases the delivery quantity of the batch main item,the quantities of dependent items within the relevant delivery groupalso need to be increased. This happens when you leave the batch splitscreen to go back to the overview screen.

Procedure
Go back to the overview screen (F3) and check changes caused by thequantity correlation in the delivery quantities of the dependent itemswithin the delivery group. Afterwards, you can save the delivery.