Dear support team, 

I'm having trouble writing and testing the custom function for payment module. I want to retrive the subscription record involved with the payment in the  Customer Payment module Custom Function. 

For some reason, the payload I retrieve when writing the custom function for Customer Payment module is a little bit different than that of a documented default response example. And I and my administrator were unable to trace back where and why there is such 

In detail, the sample response documented at https://www.zoho.com/subscriptions/api/v1/payments/#retrieve-a-payment

And here is the response in the Webhook api (Note the subscriptions field. thought the UI state that  these two response should be similar)