I would like to support Apple's in-app purchase using Nestjs.
I completed the information about Subscription, but I couldn't complete a refund for in -app payment products (available many times).
The above is the question I summarized.
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Apple (V2) is a notificationType of 'BODY.SIGNEDPAYLOD' to handle both subscriptions and refunds for in -app payment products?
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Is there any way to refund the products purchased from Apple on Sandbox?
Please feel free to answer just 1 question, not all of them!
Thank you for reading my questions.