Problem:
We have given the specificTriggerDate in the correct format but still, subscriptions are created in pending status and dates are not populating in Zuora.
Solution:
Subscription is created in pending status due to the below reason.
https://knowledgecenter.zuora.com/Billing/Subscriptions/Orders/Pending_Order_and_Subscription
All the mandatory date fields if enabled in the billing setting configuration (such as Contract effective date, Service activation date, and customer acceptance date) should be updated with the correct Date format('YYYY-MM-DD') in both the Orders and Subscription calls to avoid creating pending orders and subscriptions respectively
