Create a new message or internal note in an existing ticket. A Message is a reply to the buyer and is queued for delivery to the channel; a Note is internal and never sent.

Mirakl channels and message recipients. Mirakl requires every message to name who it goes to - the customer, the marketplace operator, or both - and this API has no field for that choice. Messages created here are therefore addressed to whatever the Mirakl channel's Default messages recipients setting names, the same fallback auto replies and bulk replies already use.

Configure it in eDesk under Settings > Mailbox > Channels: edit the Mirakl channel, open its marketplace details tab (named after the marketplace, for example "Mirakl Details"), and set Default messages recipients to Customer, Operator or Customer & Operator. Prefer Customer & Operator: on a reply the setting is matched against the people already on the Mirakl thread, so a narrower value can leave a message with nobody to go to.

While the setting is left at "Not selected" a type=Message with send=true on a Mirakl ticket is rejected with error code 4024 rather than accepted and silently left undelivered. type=Note and send=false are unaffected - neither is handed to the marketplace, so neither reads the setting. Use the eDesk UI reply box when a single message needs recipients other than the channel default.

Older Mirakl channels that were connected with an API key rather than OAuth are the one exception: they send over Mirakl's legacy order-message endpoint, which always addresses the customer and has no recipient choice at all. On those channels "Default messages recipients" is not consulted, no 4024 is raised, and every message goes to the customer regardless of what the setting says.