CODE for Purchase order number

[coolheatairconditioning]

if [Invoice No.] changes the invoice number every new invoice.

what is the code/script for purchase orders. is it [Purchase Order No.]

is there any other codes i can use to improve my QBO

[christine_w]

Hi coolheatairconditioning-

Could you let me know what you are trying to do so I can better assist you? I am not sure what you mean by code, from the context, it looks like you are customising forms, but please let me know so I can provide the best solution. 

Keep me posted.

-Christine