From your Realsynch dashboard, click + Add Integration:
Select Follow Up Boss as your Source and MailChimp as your Target:
Click Instructions on the Follow Up Boss icon and follow along:
Then click Connect > Add API Key> Click Verify > click Close:
Next, click Instructions on the MailChimp icon and follow along:
Both Source and Target connections should now display as Verified. Click Next.
Click Save > Next > and Activate:
Your integration is now active! You can access and update your Integration's Source and Target Options by clicking the wrench icon next to the Source and Target on the Realsynch dashboard.