verification_token_already_used

Code: verification_token_already_used · Shape: oauth_validate

Meaning#

This OAuth verification token was already consumed by /verify/validate.

Likely causes#

1. Double validate (UI retry, duplicate request)
2. Two backend instances consuming the same token
3. Client retried after a successful validate

How to diagnose#

• Check whether validate already returned success once.
• Ensure idempotent session creation after first success.

How to fix#

• Start a new OAuth login for a new validation.
• Do not retry validate with the same token.

Retry behavior#

Do not retry. New login required.

Related#

API: POST /verify/validate

SDK: validateVerification(), validateVerification()

Troubleshooting: oauth

Guides: Server validation, Sessions