Sales Invoices - Field for Customer's Purchase Order Number
Adding customer’s purchase order number in the sales invoices.
Purpose: because some companies will not pay an Invoice without a PO, so it’ll make users’ workflow easier when they can search #PO to find the right invoice.

We appreciate users wanting more flexibility in the data they show on invoices. At present our teams are re-developing some of the base features across Sales with particular focus on new invoicing.
At this time, there are no plans for developing a fields for a PO number in invoicing. Focus is on existing features in invoicing.
It's good to get a renewed understanding of interest here on Product Ideas, and if there's any news we will update on this here.
In the meantime, there is a way the custom template can be edited to rename the Reference field as a 'Purchase Order Number' field - see more in the discussion here.
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Laura McCorkell commented
This would be so helpful for our business. We often have to split fees so the invoice has two lines, this confuses the client and the invoice settings does not allow you to send to the client without the breakdown. Also, we are unable to edit the invoice to have a PO number field in our settings. It's very backward how I am doing it at the moment and I'm surprised Xero doesn't have a simple solution.
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Dynamic Accounts commented
The current Reference field when invoicing is visible by both Customer and Company and often has to be used for a PO number. As a company that has multiple projects going on under one Customer it is always difficult to sift through invoices looking for those relating to a specific project as I can only lable this in the invoice line item.
Having a second "reference" option which is only for internal use and does not display for the customer would allow us to better label invoices for different projects and make searches much more efficient.
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Neil McInnes commented
My Government clients require both the original sales quote reference and their purchase order number to show on all invoices.
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John Nair commented
I believe Xero should introduce a feature that allows users to create custom fields, whether for PO Numbers, Job Site addresses, or other specific needs. Essentially, this would provide a text label and an input field where users can enter their data. This functionality would enable users to fully customize their invoice or quote templates to suit their requirements.
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Henrik Nielsen commented
Many customers will not pay an invoice if it does not have the Purchase Order Number on the invoice. It gets returned and we are asked to add it, which does not work well with the documented workflow on Xero.
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Stuart Crumpton commented
Customers need to see the PO on the invoice as this aids their reconciliation processes. As more of this is automated it becomes even more critical that there is a single field where this is held.
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Caroline Des-Rivieres commented
I cannot understand why these features have not been implemented, clearly they don't intend to.
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Caitlin Stubbs commented
This would be so helpful for our business and clients. Please can it be something that's implemented soon!
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Mahesh Babu Manupoti commented
Please implement at earliest possible
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S JONE NAW commented
where can I insert Job number in invoice template?
Kindly advise me. Thanks -
Karen Witton commented
We currently input both the Customer PO & our internal reference in the 'Reference' cell. Having them both at the top of the invoice is crucial for easy identification of a specific job. Inputting either no. in the body of the invoice didn't work so well.
Thank you -
Joanne Greene commented
Please add the extra reference field for the sales invoices. We need to be able to include the customers PO and our internal ref (different to inv number).
Been requested for years but please make it happen for the new invoicing. -
Bruce McInnes commented
This is also needed in Bills. we should not have to enter supplier invoice / reference number and purchase order number in the same field.
For Invoices we have customers that quite often require both their purchase order number plus a reference Name or Number on the invoice. -
Spike Allibone commented
Definitely need this. The work arounds work of course - but purchase order numbers do certainly deserve their own field.
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Todd Challenger commented
Please could you add PO Number as a dedicated field on invoices. At the moment I have to add it to the Reference, but I want to use the Reference for something else - EG May 2024.
I've seen lots of requests for this in the community thread so I believe it would be a welcome addition.
Thank you
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Amanda Strachan commented
It would be helpful to include both the customer reference number and our file number on an invoice. This would make it easier when cross referencing with our database.
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Bruce McInnes commented
Our customers often require both their purchase order # and a reference to be included on the invoice. It is not practical to put both in the one reference field.
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DESMOND LUM commented
comparing Myob(which i have been using for 44yrs). I find Xero too unflexible to adapt to custom changes.
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Naomi Lewis commented
I can't believe PO isn't available as a standalone field to enter into the invoice. We use the reference number to give the customer order/job number so can't change this. For the customers that request the PO to also be added we need a solution. We are exporting our invoice data into Xero and have PO as a field but nowhere to map it to!
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David Little commented
Invoice template - Insert Customer ref/PO and ability to set 'unique' and warn if duplicated