This functionality requires the role "License Admin" to do. This is by default the person who originally started the subscription with us, but such a role may also be (re-)assiged to other registered users.
Add a PO
Follow these steps:
Log on to the platform as a "LicenseAdmin"
Click the company icon in the right upper corner, and select "Billing"
Click the "Company details" and locate the Purchase order field. Fill it in and hit save. Done!
Note: this will NOT update any invoices issued in the past. If any of those are missing a PO and your AP dept needs it? We suggest to print the document and write the correct PO on them yourself.