AB-3011 idempotency_scope_conflict
| Class | Validation |
| HTTP status | 409 |
| Retryable | no |
When it happens
Same idempotency key reused for a different recipient within 7 days.
Hint
Idempotency key
{key}was used for a message to{other_to}. Keys are unique per recipient; include the recipient in the key.
Troubleshooting
Use keys like review-482-r7:reviewer.