You can add purchase order details when you create a job ad by selecting Add a reference number, which is located within the Application email preferences section (see below).
In addition you can add Purchase Order details to your account when you purchase an ad pack or subscription.
Need to add a Purchase Order number to your invoice, after you have created your job ad?
Please email firstname.lastname@example.org with your request. Please note, we can't update other information on the invoice.