Notebird Integration Lock Icon
If you see the lock icon (symbol) on the Notebird integration button that means that you don't currently have the user permission / access to that specific feature. The Notebird integration feature is separately secured which means that you can give access to just that feature without access to all other features.
Steps for Admins to give access to Notebird integration feature:
Click 'Administration' on the home screen
Click into Security
Click Membership tab
Check 'Setup Notebird Connection'
Click 'Save & Close'