A coach can only perform the following actions: - View roster for classes, camps, events they are assigned to teach - Process Invoices/ payments/refunds for the classes, camps, events they are assigned to teach - View and modify their schedule - ...
Please see: https://desk.zoho.com/portal/timmyinc/kb/articles/how-to-send-text-message-from-camp-page for a detailed information on how to send text message from camp page?