What it means
expired or already-used email link.
How to handle it
Request a fresh email link and use it once before it expires; do not retry the rejected token.
Wire contract
| Code | token_invalid |
|---|---|
| Class | invalid_request |
| HTTP status | 400 |
| Meta keys | None |
| Raised | Yes |
The response uses the standard {"error": {…}} envelope. Branch on error.code, not the human-readable message. Preserve request_id when reporting a failure.