Resolved
Replies resumed at 06:40 UTC on 17 September, after the WhatsApp access token was renewed. We now alert when a WhatsApp token is about to expire or is rejected.
Identified
From 15:11 UTC on 16 September, travelers writing to one customer's WhatsApp number in IL Production got no reply. The web widget and the API were not affected.
Added retrospectively on 7 November 2026.