In your OTT Dashboard go to Settings, then Integrations and click View Details on the Available BoxCast app.

Install the app.

Click the toggle button to begin the integration.

This will pop up a BoxCast login page window. Enter the credentials that you use to log in to your BoxCast Dashboard.

Your BoxCast and OTT accounts are now linked. If you ever need to relink these accounts you can come back to the Integrations tab and click Reconnect.