Yeah, I checked out the session at TC15, but I had been working on this before VizAlerts came out. It looks like they do mostly the same thing, just in different ways.
I never thought about threshold altering in my notifications implementation. Really cool!. I really like how VizAlerts leans on the existing subscriptions and Tableau for the management.
I ended up keeping most of processing outside in PDI and using it to run tabcmd. This will probably have some pros and cons down the road. I need to find some time to try out vizalerts and get to know it.
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The closest example I have to what it sounds like you're after is this: Example: Subscriptions conditional on a successful Extract Refresh
Each dashboard you want to email to people on all of the events listed in (4) above would need to be customized in the way I describe in my second reply on that post, so I wouldn't necessarily consider it a scalable solution for a server-wide feature at this point if you're trying to do it for every workbook (hopefully before EOY we'll have that, though!)--but it would work fine for a handful of vizzes.
I looked at that example this morning. The addition would be for publish events. We have some...less than automated dashboards where the extracts are run in desktop and then published after some QA and tweaking.
For that it seems like a lot of work. Right now I just add a line to a csv for each subscription.
I wonder why a time based system was how subscriptions were introduced? For live datasources that is fine (assuming the datasource is updated). Event based seems necessary for extracts. We have to tell people subscribe to a 11am schedule because we think it will be done by then. Then when an extract gets held up in the backgrounder queue, or fails they get the subscription anyway with old data.
Being able to allow the publisher to set default subscription schedules would also be cool. I will check to see if that is on the list.
looks like there were lots of conditional and extract based schedule ideas, but none for allowing the publisher to set or limit the notification schedule so I created one. Vote it up!
I agree, it'd be more work with the current VizAlerts functionality than with your own solution. I wish I had something better to offer!
I like your feature Idea, upvoted!