How to open the site in the desired language for a specific region of a country

1. In the site structure, open the language switcher informer → "Module settings".
2. In the "Exception rules" field, write one rule per line: Country code: regions separated by commas = language code. For example: UA: Crimea, Sevastopol, Donetsk, Luhansk = ru.
3. Click "Save" in the section window.

On the first visit, the language is selected based on the visitor's country. The rule makes an exception for specific regions. A region can be specified by part of its name ("Donetsk" will match "Donetsk region") or by region code. Without a list of regions (BY = ru), the rule applies to the whole country.

The rule works only if its language is enabled for the site, and only on the first visit: for someone who has already chosen a language themselves, it changes nothing. An empty field means no exceptions. If the informer has never been saved, the default rule for Crimea and Donbas applies.

If it didn't work

• You're testing on yourself — the language doesn't change. Your choice is already remembered by the browser for a year. Test in an incognito window.
• The region is not recognized. Region names sometimes come in English — add both variants to the line, as in the default rule.