hi! i was doing wondering if there's a way to print out & increment 3-digit-serial no.?
i was planning to print out an invoice.
i want the starting of the invoice to be in this format YYYYMMDDNNN (where YYYY is the year, MM is month, DD is date & NNN is serial no (e.g: 001, 002, 003....) )

i've did the Year, month and date already. but when i want to print out the serial no. , it shows "1, 2 ..." instead...