使用客户信用卡上的 First Data API 进行资金预订
我需要知道是否可以使用 First Data API 保留或锁定资金。实际上我不知道我正在寻找的流程是否实际上称为“预订”，但我正在考虑在客户端CC上锁定一定金额的钱的标准程序，这样客户就无法花费它，但我作为商家，可以退回钱如果客户或商家愿意的话，银行、客户和我本人无需承担任何费用。有点像存款。我只是不想进行完整的交易，然后通过完整的交易返还资金并支付每一步的费用，然后再进行一些会计噩梦。
I need to know is it possible to reserve or lock money with First Data API. Actually I don't know if process I am looking for is actually called "reservation", but I am thinking of standard procedure of locking certain amount of money on client CC so that client cannot spend it but I as a merchant, can return money without any cost to bank, client and myself if client or merchant wishes so. Kinda sorta like deposit. I just don't want to do full transaction and then return money with full transaction and pay every single step of it and then some for accounting nightmare.
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1) 进行授权（又名“仅授权”、“授权保留”）以冻结您以后希望访问的最大资金金额。 记录此交易的批准代码。
2) 当需要收取您希望从客户处收到的资金时，请使用第一步中从授权收到的批准代码执行捕获。
注意事项：
1) 您最多有 30 天的时间来获取资金。对于某些信用卡来说，这个数字可能会更低。
2) 您只能提取预留的资金或更少。您获取的金额不能超过授权金额。
3) 您只能提取资金一次。这意味着，如果您获取的金额少于授权的总金额，然后您希望稍后返回并获取更多金额，则无法这样做。为此，您需要使用新的批准号处理另一笔交易。
1) Do an Authorization (a.k.a. Auth Only, Authorization hold) to freeze the maximum amount of funds you wish to access at a later date. Record the approval code from this transaction.
2) When it is time to charge the funds you wish to receive from the customer perform a Capture using the approval code received from the Authorization in step one.
Caveats:
1) You have a maximum of 30 days to capture the funds. This number may be lower for some credit cards.
2) You may only capture the funds set aside or less. You cannot capture more then the amount authorized.
3) You can only capture the funds once. This means if you capture an amount less then the total amount authorized and then you wish to go back later and get more you cannot do so. You would need to process another transaction with a fresh approval number to do so.
授权保留可能正是您所需要的。
An Authorization hold may be what you need.