Checkmk Werk 12873: Disable link to availability if required context information is missing

ID: 12873 Title: Disable link to availability if required context information is missing Component: Multisite Level: 1 Class: Bug fix Version: 2.1.0i1 The page menu link "Availability" was also shown if required context information were missing in a view. This lead to an error message on the availability view. The page menu link will now be disabled if not all required context informations are available.