Automatic putaway/picking quantity in inbound delivery

Hi friends,

In transaction VL01N/VL31N, we need to auto update of picking/putaway quantity from delivery quantity when an Outbound/Inbound delivery is created.

We try to do this with form exit USEREXIT_SAVE_DOCUMENT (include MV50AFZ1) and USEREXIT_MOVE_FIELD_TO_LIPS (include MV50AFZ1) but it doesn't work.

How can we achieve this ?

Thanks & Regards,