Problem:
Our Help Center supports regional English variants (English (US) and English (Canadian)) and correctly serves the right version based on language override (we’d like to confirm as well that language override takes priority over browser language) when accessed directly. However, the Messenger only supports base language codes (e.g., en), not regional variants. This means a member with language_override set to en-US and one set to en-CA both see identical Messenger content (our default content set to en-CA ), there's no way to differentiate.
Why this matters:
Most of our members access the Help Center through the Messenger, not by visiting Help Center articles directly. So in practice, our regional Help Center translations only work for the small fraction of traffic that lands on articles directly — the primary access point (Messenger) can't route members to the correct regional version at all. This creates real accuracy problems: US members can end up seeing Canadian-specific content (pricing, policies, terminology) and vice versa, which actively misleads them.
Requested feature:
Allow Messenger language settings and language_override to support regional locale codes (e.g., en-US, en-CA, fr-CA, fr-FR), not just base language codes — so Messenger-served Help Center content matches the same regional targeting already available for direct Help Center visits.