Currently one-time addons are not in the payload returned by the New Subscription webhook. This affects the Zapier Zoho Subscriptions application, as you can only get information on recurring addons, not single addons.

I am aware you can get the information from the Invoice Notifications webhook payload, but even if you select this checkbox in ZS when creating the webhook for the Zapier app, the data is listed differently in this payload so it does not come through in the return. The Zapier app is mapped to return the addons array, not the invoice_items array.

Our company cannot use Zoho Subscriptions until this is fixed, because we cannot properly create line items in our accounting program if we do not have data on every purchase.