So I'm interested in the cross-solution capabilities to track our
visitors across our solutions. (Analytics, Audience manager, Campaign,
Target). Though i'm finding a couple of different ID's and I'm not sure
what the specific differences are and when to use them.Campaign
documentation mainly talks about visitor ID en declared ID, and from the
looks of it, the declared ID is preferred. But reading the documentation
on the Marketing Cloud ID service it mainly talks about MID or MCID.
Could you pl...