Participant Update - External QR and Barcode

To modify the External QR and Barcode associated with an existing account, employ the /api/v2/account/set endpoint. To modify a specific visitor, identify them using one of EP's accepted matching methods and employ the subsequent fields:

• event_id: The unique identifier for the event. (integer)

• id: Account ID (integer)

• external_qr: Account External QR (string)

• external_barcode: Account External Barcode (string)