Phone Number Validation Fails for Provincial Numbers in Argentina

[mauripavan]

Phone Number Validation Fails for Provincial Numbers in Argentina

Issue Summary

During the final step of identity verification (phone number validation), users with phone numbers from Argentine provinces encounter validation errors. The system returns either a "401" error or an "Invalid phone number format" message, preventing successful completion of the verification process.

Environment

• SDK Version: 5.4.12 (latest)
• Platform: iOS / Android
• Country: Argentina
• Affected Region: Provincial phone numbers (outside Buenos Aires metropolitan area)

Expected Behavior

Provincial phone numbers from Argentina should be accepted and validated successfully during the phone verification step, following the same process as Buenos Aires numbers.

Actual Behavior

When users enter provincial phone numbers, the system:

1. Returns a 401 HTTP error code, OR
2. Displays "Invalid phone number format" error message
3. Prevents users from completing the identity verification process

Steps to Reproduce

1. Start identity verification flow
2. Complete all steps until phone number validation
3. Enter a provincial phone number from Misiones: 3751200232
4. Attempt to verify the phone number
5. Observe the error response (401 or "Invalid phone number format")

Phone Number Format Examples

Working formats (Buenos Aires):

• +54 11 XXXX-XXXX
• +5411XXXXXXXX

Failing formats (Provincial):

• +54 375 120-0232 (Misiones - specific failing example)
• +54 351 XXX-XXXX (Córdoba)
• +54 261 XXX-XXXX (Mendoza)
• +54 341 XXX-XXXX (Rosario)
• Other provincial area codes

Specific Test Case

Phone Number: 3751200232
Area Code: 375 (Misiones province)
Full International Format: +54 375 120-0232
Error Received: [401 error OR "Invalid phone number format" message]

Impact

• Users from Argentine provinces cannot complete identity verification
• Significant user experience issue affecting a large portion of our Argentine user base
• Business impact: reduced conversion rates for users outside Buenos Aires

Additional Context

This issue appears to be related to phone number format validation in the SDK. Argentine provincial numbers follow a different format than Buenos Aires numbers, with 3-digit area codes instead of 2-digit codes.

Argentine phone number format reference:

• Buenos Aires: +54 11 + 8 digits
• Provinces: +54 + 3-digit area code + 7 digits

Screenshots/Evidence

Requested Action

Please review and update the phone number validation logic to properly handle Argentine provincial phone number formats according to the official Argentine numbering plan.

[SukiasyanAvo]

Hi @mauripavan . I checked the number +54 375 120-0232 on my iOS device. It doesn’t show an error, but I see that this number isn’t registered on the phone provider’s side. Could you check it one more time and reply here on how it appears on the latest version?

[lucianoojeda36]

HI @SukiasyanAvo I'm Luciano from @mauripavan team. I already tested the number +54 3751 200232 again on my side using the stable version 5.4.18, and it still shows the same error: "formato de numero de telefono invalido".
When I try with the latest version 5.4.21, I can’t even reach the phone validation step because there’s an additional bug during the facial biometric verification (it doesn’t allow me to continue).

biometric_validation.mp4