How to get the response from custom process through approval workflow

 
I am trying to implement the "Approval of AD group create request" workflow. In my case, my first level approval is recipient's manager and once the manager approves the request I am calling the custom process (for which I have used "EX" and provided the custom process event name) which will add the user in the Person table. My custom process is getting triggered and the user is getting inserted in the Person table but even if the process has been executed, request status is still Pending and showing "The next decision step is currently being calculated. The request might also be waiting on a pending decision of another request." How can I get the decision from my process and mark this request as Granted/Assigned