Ask How do you integrate a CRM system into a membership site?

[SuperAffiliateX]

I keep hearing that a CRM system can help manage members, but I don't know how to set it up. Do I need a specific type of CRM, or will any system work? How do I connect it to my membership site without messing things up? I want to track members, send emails, and keep everything organized. I also don't want it to slow down my site or make things complicated. If you've added a CRM to a membership site before, how did you do it?