I have ticket open at the moment because the Zoho One system is saying I cannot connect Marketing Hub with Zoho CRM because I am already configured to Campaigns but I am waiting to hear what can be done -

I have verifed my domain in Marketing Hub but Campaigns is saying it  cannot verify because its already verified with another Zoho App.

I am confused about the difference of Marketing Hub App and Campaigns App as they are both included in ZohoONE but they don't talk to each other from what I see.

Can I use both Apps within ZohoONE and if so how can I do it - waiting for my ticket to be replied to