Comments on: What are 2Checkout.com’s own parameters?

By: joel

joel — Fri, 29 Aug 2008 17:03:11 +0000

The total amount paid will be passed back to you as the “total” parameter. Keep in mind with this parameter set the total is based only off this parameter so your customers will not have the option to remove or edit the quantity of items on the 2Checkout page. Unless your customer manually edits the HTML POST or GET parameters this amount will always match what you sent in.

If you’re concerned someone may edit the total, in attempts to get your product without paying full price for it, you can implement the MD5 hash on your site. More information on this here. This hash is calculated using the total so if you store the total on your site before passing the customer to our purchase pages, you can calculate the hash and compare it with what we calculated. If they do not match then your system will know that the customer edited the total.

By: joel

joel — Fri, 29 Aug 2008 14:47:05 +0000

This parameter will always equal Y unless an online check was used. In that case the parameter would equal K. We will only send the customer back to your site if the credit card can be successfully authorized. If the card is declined the customer will stay on the 2Checkout page and see the error and have the option to attempt to authorize another credit card. If the customer cancels the transaction and closes the browser then no parameter will be posted back to your site.

If you wish to be notified of the status of a sale, for example the pending online check moving to a deposited status you can use our INS system. Documentation on the INS system can be found here. The message that deals with the status of an invoice changing will be the message you will want to use if your interested in being notified of the pending echeck moving to deposited.

By: thorsten

thorsten — Fri, 29 Aug 2008 14:43:59 +0000

And how do I find out, which amount was paid?
It is possible on the payment site to remove items or the whole payment. So this may or may not be identical to the amount I sent in?

By: thorsten

thorsten — Fri, 29 Aug 2008 14:19:38 +0000

credit_card_processed - Y if successful (Approved), K if waiting for approval (Pending)

1) What about other return states?
like canceled by user or error?

2) If it’s pending, how do I query the state until I get a final result, that I can display on my web site?

By: joel

joel — Wed, 14 Nov 2007 16:23:32 +0000

The parameters are combined with a space. For example:

first_name=”first”
middle_initial=”m”
last_name=”last”

These 3 parameters would be combined into:

card_holder_name=”first m last”

By: rudibela

rudibela — Wed, 14 Nov 2007 00:31:07 +0000

How are first_name, middle_initial, and last_name parameters combined into card_holder_name? Are they just concatenated or are they separated with space, underscore or any other character?

Thank you.