While setting up Marketing Cloud Connect, a Marketing Cloud admin navigates to the Marketing Cloud...

While setting up Marketing Cloud Connect, a Marketing Cloud admin navigates to the Marketing Cloud tab in Sales Cloud to complete the integration. The admin then receives the following error message:

- Insufficient User Permissions. You have not been designated as an integrated Marketing Cloud user. Contact your system administrator

The admin notices the Marketing Cloud for AppExchange Admin option is selected when looking at the user settings

What action should correct the issue?