Apto, a Salesforce CRM Sync integration connects the dots between Constant Contact in under 5 minutes. Integrating with Apto, the #1 Commercial Real Estate software running on Salesforce, you can utilize the common Salesforce Contact object.
Please note that Apto uses the available method for “Salesforce Platform” licenses which is Notes for Campaign Response Sync Mode in Step 1 of your Sync Profile. If you would like to sync back, Campaigns in Salesforce or Activities make sure this is an active feature in your Apto account.
To see the full setup guide please see here.