Buyer email access for automated digital order fulfillment

[copperpaisleyllc-sudo]

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Question / discussion

Hello,

I operate an Etsy shop selling personalized digital coloring books. My application uses Etsy's Open API with the transactions_r scope.

I can successfully retrieve paid order receipts, but the buyer_email field returns null.

I want to automatically email each customer a unique personalization link after purchase, solely to fulfill their order.

Is buyer email access available through additional permissions or application approval? If not, what is Etsy's recommended method for automatically delivering unique, purchase-specific personalization links?

Thank you!