Start chatbot (Available in Pro plan)

The target recipient in the following formats:

ContactId: The unique ID of a contact.
PhoneNumber: The recipient's phone number (e.g., 14155552671).
Channel:ContactId: A combination of the channel (name or phone number) and the recipient's phone number (e.g., MyChannel:65b73810e2bd04aa867b5f7d, 123456789:65b73810e2bd04aa867b5f7d).
Channel:PhoneNumber: A combination of the channel (name or phone number) and the recipient's phone number (e.g., MyChannel:1415552671, 123456789:1415552671).

200Returns the result of starting the chatbot.