sales packing slip reverse for multiple batch

Hi All,

i have an issue where the PO need return to supplier due discover item in fatal error after sales post invoice. (The item not yet physical delivery to customer)

User would like to modify the same sales order as the sales order number already give to customer . (reverse sales invoice, sales packing slip without cancel the sales order )

We use the arrival journal to split an item qty into two batches during PO receive. These two batches qty reserve and drop at that sales order.

User modify the sales order by enter “negative qty” in sales order line > quantity tab > delivery now > -ve then post invoice.

However, what is better way to reverse the packing slip with two different batches in > quantity tab > delivery now ?

Regards