The primary language of an event is the fallback language shown to an attendee whose device language is not among the languages you have explicitly added to the event. The choice of primary language is irreversible — once the event is created it cannot be changed without starting a different event. For events with international attendees, the recommended primary language is English.
Before you create the event, decide whether you expect international attendees.
If yes, set the primary language to English, even if the main content language is Czech.
Add secondary languages (Czech, Slovak, others) according to which languages you want the content in.
Make this decision when the event is created — you cannot change it later.
An attendee opens the microsite or the attendee app with some device language setting. Happenee checks whether the event has content in that language:
Yes — the content is shown in that language.
No — the content is shown in the event's primary language.
So the primary language does not decide which language you fill content in — content is filled in for each added language separately. The primary language decides what is shown to attendees whose language you have not added.
You are running a conference in Prague with international guests. You plan to create the content in Czech and English. You also expect attendees whose phones are set to German, Spanish, or Italian.
Primary language = Czech (wrong): attendees with their phone set to German, Spanish, or Italian see Czech content. Unusable for them.
Primary language = English (correct): the same attendees see the English content, which they can understand.
Rule of thumb: if the event has international attendees, set the primary language to English. Add Czech as a secondary language. Czech-speaking attendees see Czech, everyone else sees English.
The primary language is part of the event's underlying data structure. Content features, the Registration form, e-mails, the microsite — every piece is created with a reference to the primary language. Happenee does not allow it to be changed retroactively, because that would break the integrity of the content.
The primary language is set when the event is created and cannot be edited later. If you realize you chose the wrong one, you have to create a new event.
When you edit content in the admin, you switch between languages with the two flags in the top-right corner. Secondary languages can be added and removed freely in Event settings → Language settings. The primary language appears in this setting marked as "Primary language — cannot be edited" and stays there permanently.
If you do not fill in content for a secondary language, the system uses the primary language for that piece of content. That is also why it makes sense to pick the broadest possible primary language (typically English) — it protects you from showing an attendee an empty piece of content.
For events with international attendees, set the primary language to English. Add Czech as a secondary language. The same applies to Slovak events — if guests from other countries might come, the primary language should be English.
The primary language cannot be changed. The only option is to create a new event and move the previously registered attendees over. Make the decision when the event is being created.
Primary language does not mean "main content language" — it means "fallback for every unknown language". Fill in the content in every language you want to offer. Use the flag in the top-right corner of the event admin to switch the language while editing.
