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Introductory Offer from Grace Period with Upgrade

Definition of 

Introductory Offer from Grace Period with Upgrade

What's 
Introductory Offer from Grace Period with Upgrade
: it is one of the possible values for
Event
. It means:
The App Store successfully completed the transaction within a 6 or 16 Billing Grace Period window, and renewed to an introductory offer of a higher level.

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Trends: Subscriptions Events

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