I have ordered Item 1 - which has a quantity of 1000. I want that order to be given a unique number from 1-1000. Then the next order would be the same range but not the number that has been given out to the first number.
If this isn't possible, then for it to go,
I have ordered Item 1 - which has a quantity of 1000. I want the order to be given the number 1, as that's the first sold. Then the 2nd one get the number 2. up to 1000.
This number should be bound to their order so it should be emailed to them, and stored on their account.