POST /support/{ref}/resolve

Parameters

ref path · string · required
Idempotency-Key header · string · optional — Makes this call safe to retry. Send the same key with the same body and the original response is replayed instead of the work happening twice. Keys are 1-256 characters and are remembered for 7 days. While the first attempt is still running, a second call with that key returns 409 idempotency_in_flight (Resend calls this concurrent_idempotent_requests); the same key with a different body returns 409 idempotency_payload_mismatch (Resend: invalid_idempotent_request).

ratelimit-limit — Messages this API key may spend in one 60-second window.
ratelimit-remaining — Messages left in the current window.
ratelimit-reset — Seconds until the current window resets and the budget refills.

Field	Type	Required
can_reopen	boolean	yes
closed_at	string \| null	yes
created_at	string	yes
csat_score	integer \| null	yes
has_unread_reply	boolean	yes
id	string	yes
last_message_at	string	yes
last_message_preview	string	yes
message_count	integer	yes
messages	array<object>	yes
messages[].attachments	array<object>	yes
messages[].author_name	string	yes
messages[].author_type	"customer" \| "operator" \| "system"	yes
messages[].body_html	string \| null	yes
messages[].body_text	string	yes
messages[].channel	"form" \| "email" \| "mcp" \| "admin"	yes
messages[].created_at	string	yes
messages[].id	string	yes
messages[].ticket_id	string	yes
messages[].visibility	"public" \| "internal" \| "system"	yes
ref	integer	yes
ref_label	string	yes
related_id	string \| null	yes
related_type	string \| null	yes
resolved_at	string \| null	yes
status	"open" \| "waiting_on_us" \| "waiting_on_customer" \| "resolved" \| "closed"	yes
status_label	string	yes
subject	string	yes
topic	"sending" \| "domains" \| "deliverability" \| "guardrails_and_limits" \| "trust_and_appeals" \| "webhooks" \| …	yes
updated_at	string	yes

Codes in the catalogue that answer with one of this operation’s error statuses. Every one of them carries a fix.