# Click and Buy

*Article Topics:* [*Billers*](/getting-started/common-topics/billers.md)

## Setting Up Click and Buy

Before you can begin configuring Click and Buy as a biller in NATS, you must first register an account through their website at [https://www.clickandbuy.com/WW\_en/payment/index.html](http://www.clickandbuy.com/WW_en/payment/index.html)

When going through the registration process, make sure you take down the account information that is provided to you by Click and Buy, including Seller ID, Transaction Manager Password, EMS Domain, and Link IDs/URLs. This information is necessary for setting up Click and Buy in NATS.

Under the "Event Messaging Service" section, set the EMS Type to PULL. If you do not do this, your poll will not work, and no recurring transactions will be recorded.

Next, add a new domain under "Offer Administration" that corresponds to the domain of the site you are setting up.

## Setting Up Click and Buy in NATS

### Billers Admin

To begin setting up Click and Buy in NATS, go to the [Billers Admin](/nats-admin/billers.md). Scroll down to the "Setup New Biller" drop-down menu, select Click And Buy, and click "Add New Option."

You will then be prompted for your Seller ID, Trans Manager Password, and EMS Domain. This information must be obtained directly from Click and Buy. If you did not receive this information, please contact your biller. When you have filled in the required information, click Save.

### Sites Admin

Next go to the [Sites Admin](/nats-admin/sites.md), create or edit a tour, and scroll down to the section marked "Join Options for this Tour." Click the "Edit Option Details" action icon for the join option(s) you want to offer Click and Buy support for.

On the next page, scroll down to the fields labeled "CLICKANDBUY." Fill in your CLICKANDBUY Link ID, Link URL, Upgrade Link ID, Upgrade Link URL, and Currency. You must fill in the CLICKANDBUY Currency field, otherwise Click and Buy will not be able determine the default currency used for transactions made in NATS.


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