In order to use this Auth0 WebTask you simply need to follow these instructions.
You first need to create an Auth0 Client and authorize this client to call the management API;
- Create a new Auth0 Client called "Change Password Service"
- Select the type of the client to be "Non-Interactive"
- On the "quickstart" screen that is show select "Auth0 Management API" in the drop down. This will show a orange box that says "This client is not authorized for this API."
- Click the button that says to "Navigate to the API and Authorize"
- Toggle the "Change Password Service" to authorized.