China messaging
Add a dedicated China verification path beside Firebase.
Keep Firebase Authentication for existing users while introducing a controlled +86 OTP route where required.
Engagement signal
Defined scope01
Firebase remains active
02
Controlled account linking
03
Mainland delivery test first
Who this route is for
Web and mobile products using Firebase Authentication that need a separate mainland delivery path.
The current bottleneck
Moving every user away from Firebase is disproportionate when only mainland phone delivery needs a different route.
Handoff target
A result your team can keep operating.
Add a destination-specific verification service and connect the verified result to the existing account model.
01
Verification service boundary
02
Provider integration
03
Account linking path
04
Critical-path test plan
Next step