Setting up PO number formatting

Setting up PO number formatting

PO Flow automatically assigns sequential numbers to purchase orders based on a prefix you configure. Setting this up correctly before your first PO is important because the prefix cannot be changed once POs exist.

How to set your PO number prefix

1. Go to Settings → General tab.
2. Find the PO Number Prefix field.
3. Enter your desired prefix — for example PO-, 2026-, or your company initials followed by a dash.
4. Click Save.

How PO numbers are assigned

When you create your first PO, it will be assigned the number [prefix]0001. Subsequent POs increment by one: [prefix]0002, [prefix]0003, and so on. Numbers are never reused, even if a PO is cancelled.

Important: prefix cannot be changed

Once your first purchase order is created the prefix field is locked and cannot be changed. This ensures all your PO numbers follow a consistent format. If you need a different prefix, contact support before creating any POs.

RTS number prefix

Return to supplier documents use a separate number sequence with their own prefix. Set this in the same General settings tab using the RTS Number Prefix field. The same rules apply — set it before creating your first return.