Can I integrate with Salesforce? If so, what information is required?

Yes, you can integrate with Salesforce; to set up the connection you need to create a Connected App in Salesforce and provide its Consumer Key (Client Id) and Consumer Secret (Client Secret) to Certain. You also need the service URL (e.g., https://na8.salesforce.com), OAuth2 authentication type, Grant Type = Authorization Code, and optional settings such as Force Update or Primary Connection. To send event data to campaigns, you must also add an event field for the campaign ID. Signal Integration with Salesforce Guide | Certain Signal Connector: Salesforce Native Integration Guide (Part 1 of 2)