Sometimes we face models which can’t be built because we fall into the circular relationship (which Power BI protects us against) or ambiguity (which sits there silently making all our results meaningless). I faced one of this situations the other day at work and found a workaround with –you guessed it– a calculation group.
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This is one problem that you don’t realize it’s a problem until you face it.
Happened to me designing a P&L report. For this report, an arbitrary list of items (arbitrary to me of course) has to be displayed in certain order, each with it’s own arbitrary calculation, and even with some hierarchy indentation. Easier said than done, really.