Edit Payment terms for past invoices

You may need a 3rd party app to do so in bulk.

Hi there, @Constdan91.

Let me walk you through in searching for a third-party app in QuickBooks Online.

Our QuickBooks Apps are available in the United States, United Kingdom, Canada, India, Australia, and France QuickBooks Online version. If your subscription belongs to the countries I mentioned, you can alternatively use this link to search and get overviews of our third-party apps: Apps Center.

Our QuickBooks Blog page will keep you updated on what new features we're implementing and how to use them.

Aside from that, we have Help articles that give step-by-step details on which section of QuickBooks you need help with. 

Please know that I'm always around here in the Community to help. Take care, and have a good day.