I have gone through multiple articles on how to integrate Adobe Analytics with Salesforce

One of these says, I need to connect AEM to Salesforce in article Integrating with Salesforce

While the other one says I nned to use Audience Manager Integrating CRM data with Adobe Analytics & Advertising Cloud

At the moment I have Licence to Adobe Analytics only.

Please help me understand which option I need to go for and the cost involved in purchasing licence for AEM or AAM whichever is the best option

Thanks

Ashok Kalra