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The button is only visible when https://kgs-software.atlassian.net/wiki/spaces/DOCUEN/pages/2872049673/Volume+Measurement#Automatic-transmission-of-volume-measurements is configured. An online connection is required for this functionality.
This is only Possible with production lizenz, non production lizenz allows to do a connection check with This feature required a production license.
Connection check is also possible with non-production license by click at the button 
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Configure descriptions
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