Summary
Add or remove labels on every message in the thread. Same rules as message labels: read and unread can change; other system labels cannot. Works on a paused inbox. Returns the thread and messages_updated. Unknown thread returns 404 thread_not_found.
Request
{
"add_labels": [
"follow-up"
],
"remove_labels": [
"unread"
]
}Response
The OpenAPI document does not declare a JSON response schema for this call. The summary is the contract.Errors
- HTTP 404 thread_not_found
Idempotency
This route does not document Idempotency-Key or client_id.