---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/60510#article
headline: "60510: SNA Error"
url: https://www.twilio.com/docs/api/errors/60510
inLanguage: en
dateModified: 2026-06-08T11:29:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 60510: SNA Error

Log Type: TWILIO

Log Level: ERROR

## Description

This error occurs when Verify receives a Silent Network Auth verification request but cannot complete the SNA flow successfully. Silent Network Auth depends on invoking `sna.url` from the end user's device over an active cellular data session so Verify can confirm the session with the carrier.

### Possible causes

* The mobile client invoked `sna.url` while connected to Wi-Fi instead of cellular data. Silent Network Auth requires a cellular data connection for the carrier check.
* The handset did not have the active mobile data session that Silent Network Auth needs to complete the verification flow.
* Carrier or network restrictions prevented the Silent Network Auth process from completing successfully.

### Possible solutions

* Invoke `sna.url` from the end user's mobile device over cellular data, not Wi-Fi. During testing, turn off Wi-Fi before opening the SNA URL.
* Call the Verification Check API and inspect `sna_attempts_error_codes` to get the final SNA result and more detailed error information for troubleshooting and monitoring.
* Fall back to SMS or another Verify channel for this end user. If you want Verify to try Silent Network Auth first and use SMS when SNA is unavailable, use the `auto` channel flow.

#### Additional resources

* [Verify Silent Network Auth Overview](/docs/verify/sna)
* [Best Practices for Verify SNA Error Handling](/docs/verify/best-practices-for-verify-sna-error-handling)
* [Verifications API Reference](/docs/verify/api/verification)