Take the hotel as an example. When the cardholder checks in, he swipes the card at the front desk of the hotel for pre-authorization, and only freezes a certain overdraft limit on the D cardholder's card. The actual consumption deduction occurs when the cardholder leaves the hotel. Not all POS can do credit card pre-authorization transactions, and UnionPay only allows a few industries such as hotels and car rentals to open this function.
Extended data:
Precautions for credit card pre-authorization:
1. Support manual input of credit card and card number.
2. Purchase orders shall be properly kept.
3. It is not allowed to cancel pre-authorization.
4. Cancellation within 30 days after pre-authorization transaction (including addition).
5. Individual cancellation of partial pre-authorization amount is not supported.
6. The transaction voucher is marked with the words "pre-authorization cancelled".
7. If pre-authorization is added, the amount, pre-authorization number and date shall be added.
8. There is no need to verify the cardholder's password.
9. It is suitable for guests to switch to other payment methods, cancel check-in or make mistakes in pre-authorization.
Baidu encyclopedia-pre-authorization