How can I generate oAuth2 Keys?

Open your Mautic settings sidebar and click on API credentials.

Create new oAuth2 credentials with the following values:

Name: As you like: E.g. Trello

Redirect URI: https://trello.aivie.ch
Click save and close

trello.aivie.ch adding to your CORS-Domains

If you have restricted your CORS domains (recommended), please add https://trello.aivie.ch to your “Valid Domains” in Mautic > settings > CORS settings.

If you enabled CORS just now, make sure your website and other external services can still connect to Mautic.

What is this CSRF Error?

The CSRF error means that the cookie has expired and a new one must be set. You can continue working on the current page, but Aivie will not let you save. To avoid losing the entered data, you should reload the page 1 time (F5).