I used a filed "Loaded_date" (data type as date) as "Last update date" in my dashboard, this is not a new field added in database (SQL server) or a calculated filed. It's added as a worksheet: Last update <Loaded_date>, I put loaded_date in text and show it in title.
when I publish the dashboard with tableau server, I verify it well appears in dashboard on line, but every time after refreshing the extract as scheduled, only this field disappear.
The way I publish:
1. Extract data, add "Last update"
2. Refresh data before publishing worksheet
Publish on line as:
I also tried to publish data source (Extract) to the server, the status showed it finish the full refresh and been refreshed, but this didn't work:
I will try to put this field in text box and show it as a parameter. But I really don't understand why it failed refreshing and be empty, because I use the same method for other fields (added as a worksheet, put variable in text and show it in title).
Sorry to hear you are having challenges getting the data refresh to appear in the view. Here is another thread on the topic that might help: Re: How do I display the last refresh date in my report ?
I hope this helps.