Hi Kyle,

I think it will be best to review the specific details with you in a screen-share session so I can understand the full context of what you are trying to do. Perhaps you need to be using this case statement in a where clause that applies to a sub-query in the view, otherwise you'd just use a report filter. There's also another advanced feature called "redirected filters" that directs the run-time report filter value back into the view as if it were a parameter.

Regarding your save error -- try clicking the "columns" or "execute" button before saving and you will likely get a more useful error message.