I've created many SSRS reports with multiple tabs, and am able to name the tabs at will using the page break/page name section of the properties window for a given tablix.
What I'm trying to solve for now, and can't find any good answers on the web for, is to create new tabs based on the result of my dataset.
The simplest example of which would be a new tab for each year of data, so now that we are in 2017 I would expect the report to add in a new tab for 2017 data (this is just a hypothetical example).
Is this possible in SSRS-2014, or do I have to settle for manual updates/additions every time I want a new tab?
You can do this. What you need to do is put the controls in the body of your report into a List control. In the Details group properties of that List control, group by year and set it up to page break between each group.
The basic steps are in the answer here below.
Year
from the Group on dropdown. This assumes you are getting this in the data.If your data returned information across more than one year, upon export to Excel, you will have one sheet for each year.
To set the sheet labels, you set the PageName property on the List detail properties pane.
=Fields!Year.Value
Now the sheets should be labeled with the year.