We've setup 5 different BU's each reflects one of our brands. We've connected all 5 BU's to one single Sales Cloud instance and also collecting data from our website using REST API.
Are there any common best practices you can recommend on how to manage Subscriber Key? I've read a lot about it, bust most articles basically tell you how important it is to be aware of your subscriber key.
Where to generate the subscriber key? Can you share your experience how you solved it?
And is there anything that needs to be activated to use Subscriber Key function?