To define the terms of service:
1. Go to the menu Settings > Registration settings > Registration process :: Connection / Subscription tab
2. Click "Define the terms of service"
3. Save your modifications.
Add a checkbox to accept the terms of the app before signing up
1. Go to the menu Extensions Store > All Extensions > JSON Edition
2. Click Install
Once the extension is added:
3. Go to the menu Settings > Other settings > JSON Edition .
4. Open the drop-down menu under the Login object
5. Add the property: shouldAcceptTerms
6. Add the value = 1 on the line of the property shouldAcceptTerms
7. Click Save at the bottom of the page.
8. Click the "Update" button in the menu Publish > Update to update your app settings and apply your modification.
Final result in your app: