Allow apps to access your network volumes
Some apps and websites can access network volumes to provide you with services and features. For example, an app might access information from a network volume to provide you with specific updates or files.
To authorize an app or a website to access network volumes, click OK in the dialog. If you don’t want to authorize access to network volumes, click Don’t Allow.
If you allow third-party apps or websites to access network volumes, any information they collect is governed by their terms and privacy policies. It’s recommended that you learn about the privacy practices of those parties.
You can review and change which apps and websites can access network volumes in Network settings.
Choose Apple menu 
in the sidebar. (You may need to scroll down.)