How do I know which objects are being processed asynchronously?

In order to find out which objects have asynchronous processing enabled, open up the Developer Console in Salesforce. From there, select ‘Query Editor’, and execute the following query:

SELECT rh2__Object__c FROM rh2__PS_Describe_c WHERE rh2__Asynchronous__c = true

The rows returned will consist of the names of the objects for which Asynchronous processing is enabled.