ギフトカード・プリペイドバーコード: 有効化と利用

Gift Cards & Prepaid Barcodes: Activation & Redemption

Gift cards and prepaid products use a sophisticated barcode system for activation at the point of sale, balance management, and redemption. The barcode on a gift card is inactive until scanned for purchase, preventing theft of unactivated cards.

Activation Flow

1. Customer brings card to checkout: Card has a printed barcode but zero balance
2. Cashier scans the card barcode: Typically Code 128 or EAN-13
3. POS sends activation request: To the card network or retailer's gift card platform
4. Platform activates the card: Links the barcode serial to a balance
5. Customer pays: The activation amount is charged as a sale
6. Card is live: Can now be used for purchases

Barcode Format

Gift card barcodes typically encode a unique serial number:

• Code 128: 16-20 digit serial number
• EAN-13: For cards sold in retail racks (treated as a product)
• Code 39: Legacy format in some systems

The serial number is distinct from any GS1 Standards & Identifiers">GTIN on the card packaging. The GTIN identifies the product type (e.g., "$25 gift card"), while the serial number identifies the specific card.

Security Features

• Activation lock: Card has no value until POS activation
• PIN protection: Hidden PIN under scratch-off panel for online use
• Tamper detection: Packaging designed to show if card has been removed
• Balance limits: Maximum stored value to limit fraud exposure
• Velocity checks: Limits on number of activations per transaction

Redemption at POS

1. Customer presents the gift card at checkout
2. Cashier scans the barcode (or customer enters the card number online)
3. POS queries the gift card platform for available balance
4. If balance is sufficient, the purchase amount is deducted
5. Remaining balance is displayed on the receipt
6. If balance is insufficient, the customer pays the difference with another method

Multi-Retailer Gift Card Networks

Third-party gift card networks (like InComm and Blackhawk) manage gift cards sold at one retailer for use at another. The barcode encodes:

• Network identifier
• Card serial number
• Retailer/brand identifier

The POS activation request is routed through the network to the appropriate brand's gift card platform.

Digital Gift Cards

Digital gift cards use barcodes displayed on screens:

• QR Code or Code 128 containing the card serial
• Sent via email or mobile app
• Scanned at POS or entered online
• Same activation and redemption flow as physical cards

Implementation Notes

• Ensure POS can handle split-tender transactions (gift card + other payment)
• Implement real-time balance checks at scan time
• Log all activation and redemption events for fraud monitoring
• Support balance inquiry without requiring a purchase
• Handle edge cases: expired cards, zero-balance returns, stolen cards