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Checkout Parameters

Passing additional parameters allows you to modify the behavior of the Paddle checkout, for example to pre-fill a buyer’s email address or set a custom message. Either JavaScript parameters or HTML attributes can be used, depending on your integration.

How to pass in parameters

The method of specifying checkout parameters depends on whether you have implemented your checkout using the paddle_button class or are invoking the checkout yourself by calling the method.

If you are using the paddle_button class, checkout properties must be set using data attributes on the button itself (see Button Attribute column in the table below). If you are calling, the properties should be set by specifying parameters in the method call (see JavaScript Attribute column below).

Checkout Properties

When creating checkouts either via the Paddle Checkout Buttons, or invoking directly using there are a number of options available to you to customise the checkout experience, or pre-fill data.

A list of these properties are below and can be used on both Checkout Buttons, or with the open() method.

Property Name Description Button Attribute JavaScript Attribute Required
Product ID The ID of the Paddle Product or Subscription this checkout is for. data-product product Yes (if override is not set)
Title Overrides the product’s name on the checkout page. data-title title No
Message A message/string of text displayed under the product name on the checkout. data-message message No
Coupon Pre-fills a coupon code on the checkout. data-coupon coupon No
Marketing Consent Pre-fills the consent to market the users. data-marketing-consent marketingConsent Yes (if email is also set)
Email Pre-fills the customer ‘Email’ field on the checkout. data-email email No
Country Pre-fills the customer ‘Country’ field on the checkout. See below for the list of recognised countries. data-country country Yes (if postcode is also set)
ZIP/Postal Code Pre-fills the customer ‘ZIP/Postcode’ field on the checkout. See below for countries requiring this.

Note: Country (above) is required for postcode to be pre-filled.
data-postcode postcode No
Allow Quantity Enables the quantity selector on the checkout page. (Default: true) data-allow-quantity allowQuantity No
Quantity Pre-fills the Quantity selector on the checkout. data-quantity quantity No
Disable Logout Disable the ability for a user to logout/change email once on the checkout. data-disable-logout disableLogout No
Locale Force the checkout to a specific locale. See below for the list of supported locales. data-locale locale No
Passthrough A string of metadata you wish to store with the checkout. Will be sent alongside all webhooks associated with the order. See the Paddle Checkout (Web) documentation for more information. data-passthrough passthrough No
Referrer Adds a custom referrer/campaign string to be stored with the checkout. data-referrer referring_domain No
Success Redirect A URL to redirect to upon checkout completion. data-success success No
Success Callback A Javascript function to call upon checkout completion. data-success-callback successCallback No
Close Callback A Javascript function to call upon checkout close. data-close-callback closeCallback No
Load Callback A Javascript function to call upon checkout loaded. data-load-callback loadCallback No
Upsell The ID of a product you wish to prompt the user to purchase instead. data-upsell upsell No
Upsell Title Customise the title of the upsell dialog. data-upsell-title upsellTitle No
Upsell Text Customise the upsell message displayed to the user. data-upsell-text upsellText No
Upsell Action Customise the upsell button text. data-upsell-action upsellAction No
Upsell Coupon Pre-fills a coupon code for the upsell product. data-upsell-coupon upsellCoupon No
Custom Checkout Override Opens a custom checkout URL generated via the Custom Checkout API. See the Custom Checkout API documentation for more information. data-override override No (if product is set)

Supported Locales

The following locales are accepted values to be passed with the locale field:

ar : Arabic zh-Hans : Chinese (Simplified) nl : Dutch
en : English fr : French de : German
it : Italian ja : Japanese pl : Polish
pt : Portuguese ru : Russian es : Spanish

Recognised Countries

The following countries are accepted values to be passed with the country field. Countries marked with an asterisk (*) also requires the postcode to be passed in alongside country:

AF: Afghanistan AL: Albania DZ: Algeria
AS: American Samoa AD: Andorra AO: Angola
AI: Anguilla AG: Antigua and Barbuda AR: Argentina
AM: Armenia AW: Aruba AU: Australia*
AT: Austria AZ: Azerbaijan BS: Bahamas
BH: Bahrain BD: Bangladesh BB: Barbados
BY: Belarus BE: Belgium BZ: Belize
BJ: Benin BM: Bermuda BT: Bhutan
BO: Bolivia BA: Bosnia and Herzegovina BW: Botswana
BV: Bouvet Island BR: Brazil IO: Brit. Indian Ocean
VG: British Virgin Islands BN: Brunei Darussalam BG: Bulgaria
BF: Burkina Faso BI: Burundi KH: Cambodia
CM: Cameroon CA: Canada* CV: Cape Verde
KY: Cayman Islands CF: Central African Republic TD: Chad
CL: Chile CN: China CX: Christmas Island
CC: Cocos Islands CO: Colombia KM: Comoros
CG: Congo CK: Cook Islands CR: Costa Rica
CI: Cote D’Ivoire HR: Croatia CU: Cuba
CW: Curaçao CY: Cyprus CZ: Czech Republic
DK: Denmark DJ: Djibouti DM: Dominica
DO: Dominican Republic EC: Ecuador EG: Egypt
SV: El Salvador GQ: Equatorial Guinea ER: Eritrea
EE: Estonia ET: Ethiopia FK: Falkland Islands
FO: Faroe Islands FJ: Fiji FI: Finland
FR: France* GF: French Guiana PF: French Polynesia
TF: French Southern Terr. GA: Gabon GM: Gambia
GE: Georgia DE: Germany* GH: Ghana
GI: Gibraltar GR: Greece GL: Greenland
GD: Grenada GP: Guadeloupe GU: Guam
GT: Guatemala GG: Guernsey GN: Guinea
GW: Guinea-Bissau GY: Guyana HT: Haiti
HM: Heard/ Mcdonald Islands VA: Holy See/ Vatican City HN: Honduras
HK: Hong Kong HU: Hungary IS: Iceland
IN: India* ID: Indonesia IR: Iran
IQ: Iraq IE: Ireland IL: Israel
IT: Italy* JM: Jamaica JP: Japan
JE: Jersey JO: Jordan KZ: Kazakhstan
KE: Kenya KI: Kiribati KW: Kuwait
KG: Kyrgyzstan LA: Lao People’s DR LV: Latvia
LB: Lebanon LS: Lesotho LR: Liberia
LY: Libyan Arab Jamahiriya LI: Liechtenstein LT: Lithuania
LU: Luxembourg MO: Macao MK: Macedonia
MG: Madagascar MW: Malawi MY: Malaysia
MV: Maldives ML: Mali MT: Malta
MH: Marshall Islands MQ: Martinique MR: Mauritania
MU: Mauritius YT: Mayotte MX: Mexico
FM: Micronesia MD: Moldova MC: Monaco
MN: Mongolia ME: Montenegro MS: Montserrat
MA: Morocco MZ: Mozambique MM: Myanmar
NA: Namibia NR: Nauru NP: Nepal
NL: Netherlands* AN: Netherlands Antilles NC: New Caledonia
NZ: New Zealand NI: Nicaragua NE: Niger
NG: Nigeria NU: Niue NF: Norfolk Island
KP: North Korea MP: Northern Mariana Islands NO: Norway
OM: Oman PK: Pakistan PW: Palau
PS: Palestinian Territory PA: Panama PG: Papua New Guinea
PY: Paraguay PE: Peru PH: Philippines
PN: Pitcairn PL: Poland PT: Portugal
PR: Puerto Rico QA: Qatar RS: Republic of Serbia
RE: Reunion RO: Romania RU: Russian Federation
RW: Rwanda GS: S. Georgia/ Sandwich Islands SH: Saint Helena
KN: Saint Kitts and Nevis LC: Saint Lucia PM: Saint Pierre and Miquelon
VC: Saint Vincent/ Grenadines WS: Samoa SM: San Marino
ST: Sao Tome and Principe SA: Saudi Arabia SN: Senegal
SC: Seychelles SL: Sierra Leone SG: Singapore
SK: Slovakia SI: Slovenia SB: Solomon Islands
SO: Somalia ZA: South Africa KR: South Korea
ES: Spain* LK: Sri Lanka SD: Sudan
SR: Suriname SJ: Svalbard and Jan Mayen SZ: Swaziland
SE: Sweden CH: Switzerland SY: Syrian Arab Republic
TW: Taiwan TJ: Tajikistan TZ: Tanzania
TH: Thailand TL: Timor-Leste TG: Togo
TK: Tokelau TO: Tonga TT: Trinidad and Tobago
TN: Tunisia TR: Turkey TM: Turkmenistan
TC: Turks and Caicos Islands TV: Tuvalu VI: U.S. Virgin Islands
UG: Uganda UA: Ukraine AE: United Arab Emirates
GB: United Kingdom* US: United States* UM: United States (M.O.I.)
UY: Uruguay UZ: Uzbekistan VU: Vanuatu
VE: Venezuela VN: Vietnam WF: Wallis and Futuna
EH: Western Sahara YE: Yemen ZM: Zambia
ZW: Zimbabwe    

Next Steps

Now you've added the start of the checkout flow, we'd recommend looking at localizing your website based on user geography, or one of the other next steps below:
Displaying Localized Prices
Displaying localized prices: a benefit to using Paddle is its ability to automatically localize your checkout.
Paddle Audience
Collect user email addresses and build a customer marketing base using Paddle.js
Provide Download Prompts & Buttons with Paddle.js
Paddle.js has built-in download functionality, so you can build your customer base while offering website downloads.

Questions about Paddle?

If you need any help regarding your Paddle integration, please get in touch with our Customer Success team using the form below.

Questions about Paddle?