Put a PO number or custom reference on your Xero invoices

By default a Xero invoice's reference is the Shopify order number. Trade customers often need their own purchase order number there instead, so they can match your invoice to their paperwork.

How it Works

We set up which field on the Shopify order the reference should be built from. It can be a single field, or several joined together with a separator of your choosing, with fallback values for when an order leaves one blank.

Where the PO number lives depends on your setup. Shopify's own PO number field is Plus B2B only, so on other plans a B2B app usually writes it into the order notes or an attribute instead. We can read it from wherever it actually is.

By default the Shopify order number is still put in front of your reference as a safety net. If you want the reference to be the PO number and nothing else, say so and we'll drop it.

How to Request Setup

Email us at help@hyvelabs.co with your shop URL, an example order that has a PO number on it, and what you want the invoice reference to read. Telling us exactly where the number appears on that order saves a round trip.