We were periodically pulling this data and create a viz/report. I just went in and it looks like the data only goes back by 1 month? Is this new or am I missing something?
The data that is stored about the Tableau Server is cleaned out periodically to help prevent performance impact. Information on the default cadence of when the information will be cleaned is found in the following product help.
+ Create Custom Administrative Views - Tableau
Hope this helps!
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