API product catalogEnterprise Governance, Security & Access
Add a partner-visible support message
Enterprise Governance, Security & Access
POST
/support/{ticketId}/messages
Add a partner-visible support message
Production only
replyToPartnerSupportTicketParameters
ticketIdstringpathRequiredHeaders
AuthorizationstringRequiredBearer sk_sandbox_<your_key> for sandbox requests.
Idempotency-KeystringheaderRequiredUnique string that makes write calls safe to retry on network failure. Required for money movement, trading, KYC, subscriptions, and webhook creation. Deduplicated for 24 hours -- duplicate keys return the cached response. HTTP 409 if a concurrent request with the same key is still in progress.
Example: dep_user42_1743152580
Request body
messagestringattachmentsobject[]Response fields
See the response format and API Reference for this endpoint.
Response codes
201Reply added and case moved to WAITING_ON_MYSTOCKS