Does the Marketing Cloud Connect managed package support integrating with Salesforce when your ORG uses Two-Factor Authentication with High Assurance?
In your Org's Setup, under Administer > Security Controls > Session Settings, there is a section for Session Security Levels. If Two Factor Authentication is added to the High Assurance section, and you have added High Assurance to your session settings under your user profiles (Session security level required at login), you will see issues with setting up Connected App authentication and completing the integration of your Marketing Cloud account.
Note: This “high assurance” authentication is not compatible with the Marketing Cloud Connect's managed package and Connected App setup.
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