Updating Your Billing Information
You can update billing information in the Edit Market tab, such as the Billing Contact email address or Purchase Order number.
Click View Company Markets from the Company Profile page.
If the Company Profile page isn’t visible, choose Company > Billing Markets.
Locate the market(s) to update and click Edit Market.
Update any of the billing information for the selected market.
For the Purchase Order Number to appear on an invoice, you must update it before the end of the billing period.