Kentico Integration Bus

Instance Version :- Kentico 11

Required Scenario:- I want to use Kentico Integration Bus to synchronize the contact details(stored in the form of messages) from Amazon SQS queue to OM_Contact table in Kentico database and I want to process the incoming tasks regularly by a scheduled task.

Problem :- The main problem is that in my case there is no external application, every thing I use to manage through the classes in one Kentico Instance, so where do I need to call the ProcessExternalTask method?

IntegrationHelper.ProcessExternalTask("CustomConnector", externalObject, IntegrationProcessTypeEnum.Default, TaskTypeEnum.CreateObject, TaskDataTypeEnum.Simple, "SiteCodeName");