Pre-authorization of credit card is equivalent to paying a deposit for consumption, but it is more convenient than paying a deposit, and the cardholder does not really have to pay out the money. Compared with cash and debit cards, the advantages are obvious.

take a 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-stay cardholder's card, and the actual consumption deduction will occur 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, car rentals to open this function.

Extended information:

Precautions for pre-authorization of credit card swiping:

1. Credit card swiping and card number manual input are supported.

2. The purchase order should be properly kept.

3. cancellation of "pre-authorization revocation" is not allowed.

4. cancel the pre-authorized transaction (including additions) within 3 days.

5. Individual cancellation of some pre-authorized amounts is not supported.

6. The transaction voucher is marked with the words "pre-authorization cancellation".

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