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DualEntry shows its menus, buttons, forms, and messages in Spanish or English. You choose the language with the Locale setting in your personal preferences. If you leave Locale on Default (browser), DualEntry uses your browser’s language instead. The language you pick changes only what you see. It doesn’t change what your coworkers see or what your customers and vendors receive.

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Change your display language

Set your display language with the Locale field on the Preferences tab of your personal settings. You don’t need an admin role, since every user can change their own Locale.
  1. Open Personal settings → Preferences from your initials in the top right corner.
  2. Under Locale, pick a language:
    • Spain (Spanish) to read DualEntry in Spanish
    • United States (English) or United Kingdom (English) to read DualEntry in English
    • Default (browser) to follow your browser’s language
DualEntry saves the setting as soon as you pick it and switches language without a Save button. The setting is tied to your user, so it follows you to any browser or computer you sign in from.

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Use your browser’s language instead

If you leave Locale on Default (browser), change the language order in your browser and reload DualEntry. You find the list in a different place in each browser:
  • Chrome: Settings → Languages → Preferred languages
  • Edge: Settings → Languages → Preferred languages
  • Firefox: Settings → General → Language → Choose (next to the website language preference)
  • Safari: your Mac’s System Settings → General → Language & Region → Preferred Languages
Put Spanish or English at the top of the list, then reload DualEntry. Other websites that follow your browser language switch too. Chrome also has a setting to display the browser itself in a language, which is separate from the website language list. Only the website language list matters for DualEntry.

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How DualEntry picks a language

DualEntry picks your display language from your personal Locale setting first and falls back to your browser’s language. If Locale is set to Default (browser), DualEntry reads only the first language in your browser’s list of preferred languages and ignores the rest. So if your browser lists French first and Spanish second, DualEntry shows English. The table below shows what you see for each Locale setting. Locale also sets how numbers and dates are written on screen, for example 12.345,67 in Spanish instead of 12,345.67 in US English. United States (English) and United Kingdom (English) show the same English text and differ only in this formatting. Your personal Date Format Style setting picks a short, medium, or long date in your locale’s format, or a custom pattern you write. Month names in a custom pattern still follow Locale. See Setting your personal date format.

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What the display language doesn’t change

The display language translates DualEntry’s own text on screen. It leaves the items below as they are:
  • Your data: Account names, customer and vendor names, item names and descriptions, custom field labels, and memos appear as you entered them.
  • Customer and vendor documents: Invoice PDFs use the language of their custom template, which is English or Dutch. Amounts and dates on those documents follow the organization, company, customer, or vendor settings. See How to Invoice in Another Language.
  • Emails and server messages: Emails DualEntry sends, and some error messages that come from the server, are in English.
  • The API, CLI, and MCP server: They return English, and their field names and values are the same in every language.
Text that isn’t translated yet shows in English. DualEntry falls back one piece of text at a time, so a Spanish screen can show an English label or message next to Spanish ones while translation continues.

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Troubleshooting

These are the usual reasons DualEntry doesn’t show the language you expect, and how to fix each one.
  • You changed your browser language and nothing happened: Your Locale setting takes priority over the browser. Set Locale to Default (browser), then reload.
  • DualEntry is in Spanish and you want English: Set Locale to United States (English) or United Kingdom (English). If Locale is already on Default (browser), your browser lists Spanish first. Move English to the top and reload.
  • Some labels or messages are in English on a Spanish screen: That text isn’t translated yet. DualEntry shows English for any text that has no Spanish translation, so a few English words can appear on an otherwise Spanish screen.
  • A coworker sees a different language: Each person’s Locale setting, or their browser when Locale is on the default, decides what they see. Two people in the same organization can read DualEntry in different languages.
Last modified on November 12, 2026