Web services enable other systems to log in to this Moodle and perform operations. For extra security this feature should be disabled unless you are really using it.
This feature is disabled by default.
Step 1. Login as a Site Administrator and select Administration
Step 2. Select Site Administration
Step 3. Select Site Administration Tab
Step 4. Select Advanced Features
Step 5. Locate Enable Web Services
Step 6. Check the Checkbox which appears next to Enable web services. If the check is unchecked, web services will be disabled.
Please note, for security reasons this feature should be disabled unless in use.
Step 7. Scroll to the bottom of the screen and select Save Changes.
Web services has now been enabled.