App Data Explorer
>
App Store Connect
>
Trends: Subscriptions Events
>
Event
>
Grace Period from Promotional Offer

Definition of 

Grace Period from Promotional Offer

What's 
Grace Period from Promotional Offer
: it is one of the possible values for
Event
. It means:
The App Store was unable to complete the transaction of renewing a subscription on a promotional offer to a paid subscription due to a billing issue, and the subscription enters a 6 or 16 day Billing Grace Period window.

See other fields from

Trends: Subscriptions Events

Explore more Reports from

App Store Connect

The (only) data hub made for apps