A bill number once entered, cannot be repeated in Zoho Books except the following two cases:
Case 1- You have multiple vendors and a few of them might be following a similar series. Let’s say Vendor A and B have their bill number series as Bill-1, Bill-2, and so on. There are chances where you might have received bills with the same number from them. In such cases, Zoho Books lets you enter a bill number twice if they are from two different vendors.
Case 2- Your vendor repeats his bill number series every financial year. So, if you happen to receive a bill this year, you will be able to record another bill with the same number, from the same vendor in the next financial year only.
VAT ready accounting
software for small