Updating of HU-Information in ERP Outbound Delivery before EWM Goods Issue

Dear Experts,I have following simple scenario:

Step 1: ERP outbound delivery will be created and replicated to EWM

Step 2: Positions of EWM outbound deliery order will be packed but NO GI will be booked

Could you please help me with the question: how can be ERP Information related to HU/Packing information updated before the goods issue on EWM side done?

Thank you very much in advance.

BR.

Denis.