Instructure discontinued its SMS notification service in Scandinavia in the spring of 2020. Because the function is still in use in other parts of the world, it is still shown as a service for us.
If you are to receive notifications of changes to pages, the teacher must tick the box by “Notify users that this content has changed” when editing the page.
Contact the Canvas administrator through the “Help” button at the bottom of the Global Menu.
At present, manual modification of the e-mail address is the only option when former students wish to stop unwanted e-mail and notifications from Canvas. For example, the suffix “.stop” may be added to the address. The original address will still be searchable.