I want to have a KPI with values from the previous month in an app, and I don't know how to do that easily. I want to use an expression that looks something like:
...such that the size for the previous month is shown in the KPI. What code can I use in the Magic section of that expression? The autoCalendar expressions didn't do anything since they just pick up the actual time from the computer and not the stored time data in the database.