Delivery-Billing: change billing quantity,can't billing two time


My customer has the requirement: DN must has muti-billing for one item. For example, PGI is 1000 qty at one item.  Then billing 900 qty the firstly time, Next they billing 100 at another time.

My configure: 1) billing relevance=K in item category; 2) copy control: Data VBRK/VBRP=007

Now I can billing the 900 qty, but I can't billing the 100 qty, because the billing status is C at the DN item.

Thanks your help!


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