Contact person: Business Client

Phone:Show

Email:Show

Location: Kharkiv, Ukraine

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"My React + Capacitor mobile app signs me in through Facebook without a hitch, yet every other user sees the flow stall or throw a generic error. We need to turn that single-account success into a universal one.

Here’s the setup: the app is built with React, wrapped in Capacitor, and compiled in Android Studio for the current APK. I’m convinced the snag sits somewhere inside Facebook’s OAuth configuration—roles, permissions, or a missing App Review toggle—but I’d like a second pair of expert eyes to confirm.

The plan is simple: we jump on chat, you walk me through the exact checks inside the Facebook Developer Console, pinpoint the misconfiguration, tweak whatever is off (permissions, redirect URIs, public mode, Graph API settings), and then we test live with a non-admin account until the login completes successfully. Once every user can authenticate and the fix is repeatable, I release payment immediately.

You should feel completely at home with React, Capacitor, Android Studio signing builds, Facebook OAuth, and the Graph API dashboard. If we can wrap this inside an hour, perfect; if it takes a touch longer, that’s fine too—as long as the outcome is stable and documented.

Deliverables:
• Root cause identified and corrected in the Facebook app settings.
• Successful login flow verified on at least one non-admin device.
• Brief recap of the changes so I can reproduce them for staging or future versions.

If that sounds straightforward to you, let’s get this pushed live right away." (client-provided description)