I want to ask your advice in organizing a new Marketing Cloud org. Our business process is organized in a way that we have Leads and later they are converted into Person Accounts. We track the consents of the clients in the Individual object. So, the idea is to have one master record for both objects. When it comes to the defining what Key to use for a subscriber, do you think that it's a good idea to link a SubscriberKey to the IndividualId for email send outs? Potentially, it'll allow us to track the subscription of a person despite the conversion. Do you think that there might be any hidden rocks inside this idea?
One important thing is that this org is shared with another department with its own sfdc org and they have ContactId as a SubscriberKey. Would it be a problem in case of having different keys in All Subscribers? In practice, these clients are different people and they cannot exist for both departments.
Thank you!