Update Contact

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

• The unique identifier of the contact
• Must be formatted as country_code + number (e.g., 918527184400). Do not include special characters

Update the contact name. Note that this name will only be updated on Periskope (not on the phone)

Mark the contact as internal. Messages from internal contacts are not flagged

• A comma-separated list of labels to be assigned to the contacts. All labels are case-insensitive.
• If any label currently does not exist, it will be created