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Calculation of subscription duration purchased through multiple channels

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If I use api/v2/server-side-api/purchase/set/transaction to give the user a 2-month subscription, and the user purchases a 1-month subscription through the Apple Store, then in Adapty, how many months does this user have to subscribe? Is it 3 months after superposition, or 2 months in parallel?

Posted by 曾华琛 ·
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  • Amina Magomedova changed status to Complete
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  • Adapty Support

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    Dec 9, 2025

    Hello there!

    When the same access level is granted from both Server-side and the App Store, Adapty will recognize the one with the latest expires_at date. The durations won't add up, so you'll have two months in parallel, not three stacked together.