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Supported Languages and How to Test

Language settings, supported codes, browser defaults, and testing with ?lang parameter.

How languages are determined

By default, translations are set automatically using the shopper’s browser language.

Overriding the default language

To display a page in a specific language, add the ?lang=xx parameter to any URL.

✅ This parameter can be used in both testing and production.

Supported languages

Language

Code

Czech

cs

Danish

da

Danish (Denmark)

da-DK

German

de

German (Liechtenstein)

de-CH

Greek

el

English

en

Spanish

es

Spanish (LATAM)

es-419

Spanish (US)

es-US

Finnish

fi

French

fr

French (Canada)

fr-CA

Hebrew

he

Indonesian

id

Italian

it

Japanese

ja

Korean

ko

Dutch

nl

Norwegian

no

Polish

pl

Portuguese

pt

Portuguese (Brazil)

pt-BR

Russian

ru

Swedish

sv

Turkish

tr

Chinese

zh

Notes

  • Language codes are case-sensitive.

  • To test both languages and currencies, you can combine parameters.

⚠️ Reminder: Combined parameters for language + currency should only be used in testing. Using them in production may cause a currency mismatch at checkout.

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