Creates a new message from a conversation.
The new message created by the endpoint will be associated with the same customer as the conversation.
Any one of the following roles is required for this endpoint:
|Legacy Role||Equivalent Permission Set Role|
org.admin role is required for setting
modifiedBy. Otherwise, the token automatically sets these attributes.
Messages are subject to a rate limit. A single client can create up to 120 messages per minute per customer.
importedAt in their body will not be subject to the rate limit.
429 Too Many Requests response will be returned if the rate limit has been reached for a customer.