First, make sure your Facebook page is linked! If that doesn't work, see below.
Facebook's mobile app does not support Page Tabs at this time. We wish they did!
Your announcements will still post to your Facebook feed, which will be visible to your customers who are viewing your page on their mobile devices.
Additionally, your customers can see your full menu listed on Untappd and your website from their mobile devices! We recommend creating a post routing your mobile social following to your Untappd Venue Page to follow you for updates.