How to open links from URL actions and web URLs in separate browser tabs or windows and not in the same view or dashboard.
First of all, the URL/link set via URL action in the published dashboard opens in a new tab/window in the web browser by default, even if you don't add any options at the end of the dashboard URL when you first open it. This behavior is by design.
When you set the URL action to another Tableau dashboard, the dashboard opens in the new (second) tab/window upon clicking on part of the dashboard, which triggers the URL action. When the URL action is triggered from this newly opened dashboard on the second tab/window, however, the target (dashboard) opens in the same window/tab. (i.e. it will not open the third/new tab.)
Workaround steps below will force open it in a new tab/window.
To workaround this issue:
Adding ?:embed=yes to the URL is not required to make this solution work. However, embedding the view in a webpage with the ?:embed=yes&:linktarget=_blank in the embed code will guarantee everyone who accesses the embedded view will open URL actions in new windows/tabs every time.
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