title: Integrate Salesforce with Salesforce
body: <p>I'm trying to get updated account records from a Salesforce organization <strong>pushTopic</strong> subscription and trying to add the changes in <strong>another Salesforce organization</strong>. If the second organization already has the particular account, it should be updated else it should be create as new account. For this scenario I need to check the second organization account with first organization account records. How can we do it since Salesforce doesn't have unique key other than record id?</p>