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Please use the search tool, this has been asked many times before - https://community.tableau.com/search.jspa?q=write+back
Or embed a webpage in a dashboard where the webpage is a webapplication you've written to take data input
1 of 1 people found this helpful
Condensing what Tom said, the short answer is "No" unless you want to perform some fancy, unsupported custom work. Tableau is a reporting & analysis tool.
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