By default your first PO and invoice in Knowify will be #1, however you can enter in the last invoice and/or PO number that you’ve used so that Knowify sequentially increments from this number. In your admin section, under the customize tab, you will see the option for Numbering. Click here and set the last invoice and/or PO number used.
The next time you create a PO or an Invoice, we will used the next number from what you have entered here.