Working with Report Manager - Learning SQL Server Reporting Services 2012 - page 221

If the scheduler has no permission to the file share there will be a delivery
error as shown in the following screenshot:
Using the Edit button it is possible to edit the subscription. In the previous
screenshot, after obtaining the permission to file share the subscription was
edited and it was run again. It was successfully delivered to the file share as
shown in the previous screenshot.
Hands-on exercise 4.12 - creating data-driven
report subscription for delivery to a file share
Data-driven subscriptions send out reports not just to one individual or two but to a
large number of recipients whose desired format among other details are maintained
in a database on the server. This is report delivery targeted at mass distribution. In
order to work with this hands-on exercise, you need to keep a database of recipients
ready. When the subscription is processed the Report Server customizes the output
for each of the recipients maintained on the database. The example shown sends out
reports to multiple recipients by e-mail.