Adding An item to sharepoint list using WCF service does not start workflow on that list

I tried adding a new item to list using WCF Service . The item is added successfully to the list but sharepoint 2013 designer workflow does not start on that list item, no workflows where created at all (the status column was empty).

(The workflow should start on item created)

I tried changing the WCF IIS application pool user not to be the system account but still the same issue happened.

Does the WCF require a special configuration to run the workflow