Digital receipts are designed to respect customer consent and privacy by only collecting the minimal data needed to deliver the receipt (e.g., a QR‑code link, optional email or SMS address) and never storing persistent personal identifiers unless the shopper explicitly provides them. All receipt data is kept in a secure, GDPR‑certified cloud where PANs are masked and the information is retained solely for transaction proof, with local data‑residency options available where required. Merchants can use the captured contact details for personalised offers only after the customer has given explicit opt‑in, ensuring full compliance with GDPR and giving shoppers direct control over how—and whether—their receipt is delivered.