Good afternoon
I buy and sell electronics and hardware, for example I have 10 iphones with a unique serial number.
When buying I need to register an serial number to each iphone individually, if I sell 1 iphone I need to be able to put the iphone with the serial number that is sold on the order when picking it so it is linked to a customer.
If the customer cancels the order, the serial number has to be available again.
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