Activates a contact's contact channel. Incident Manager can't engage a contact until the contact channel has been activated.
See https://paws-r.github.io/docs/ssmcontacts/activate_contact_channel.html for full documentation.
ssmcontacts_activate_contact_channel(ContactChannelId, ActivationCode)[required] The Amazon Resource Name (ARN) of the contact channel.
[required] The code sent to the contact channel when it was created in the contact.