API call to list subscriptions for specific customer id returning empty list

API call to list subscriptions for specific customer id returning empty list

I understand that I can make an API call to fetch all subscriptions for a specific customer by appending the customer_id to the query string, like below.

https://subscriptions.zoho.com/api/v1/subscriptions?customer_id=12345

However, this doesn't seem to be working for a specific customer, even though I can see the subscription in the UI.  Does this API call return subscriptions that are still in their free trial?   If I dump the response I get what's below and notice "applied_filter":"SubscriptionStatus.LIVE".  If this is filtering only live subscriptions, is there any way to get ones that are still in free trial?

{"code":0,
"message":"success",
"subscriptions":[],
"page_context{
      "page":1,
      "per_page":200,
      "has_more_page":false,
      "applied_filter":"SubscriptionStatus.LIVE",
      "sort_column":"created_time",
      "sort_order":"A"
      }
}