post https://api.{YourRegion}.webexconnect.io/resources/v1/messaging/
"Allows the customer to schedule an appointment. The customer can also get directions to the location or add the event to their calendar by tapping Get Directions or Add to Calendar." Note : Modify YourRegion in the URL to the right to reflect your tenant’s region. See Know your endpoint page.
Error Codes
Refer to the below page https://developers.imiconnect.io/reference/channel-specific-status-codes-1#apple-messages-for-business