Hi,
We use the (now deprecated) server-side receipt verification API (*1) with the app we are maintaining and there are some points I would like confirm on how its response changes based on whether the purchase being processed was a subscription that used an offer code or not.
I am particularly concerned about the following:
Are there any properties of the response that are added or missing?
Is there any property indicating that an offer code was used?
If there is, which field is that and what values does it take?
Are there any special steps or options required when processing the receipt which used an offer code on the server side?
*1 https://developer.apple.com/documentation/appstorereceipts/verifyreceipt