Turn the confirmation text on or off and set its wording (owners and admins). Body { enabled, message_template }; {company}, {place}, {first_name}; must mention STOP.

PUT

https://api.channelautomation.com/api/field-sales/compliance/optin-settings

curl --request PUT \
  --url https://api.channelautomation.com/api/field-sales/compliance/optin-settings

const url = 'https://api.channelautomation.com/api/field-sales/compliance/optin-settings';
const options = {method: 'PUT'};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));