How do I add a Purchase Order Number in the Invoice?
Adding a Purchase Order Number
If you need to add your company Purchase Order (P. O.) Number to your invoice you should fill out the field "Customer / Purchase Order (P. O.) Number" in the step “Billing”, during checkout.
You company P.O. number will be displayed in the Invoice/Quote, as highlighted in red in the image below:

Updated on: 12/12/2022