I have created a Calculation Sheet (feeding in to a Dashboard) with Columns including "Started Last Month?" and "Ended Last Month?". Row data therein is either "Yes", "No" (or "#INVALID DATA TYPE" - not worried about this at moment).
I then have a further column, "Active Last Month?", which I want to report "Yes", "No" (or "#INVALID DATA TYPE" - not worried about this at moment).
The latest (but simplest) equation to fail I have tried is:
=IF([Started Last Month?]@row)="Yes",OR(IF([Ended Last Month?]@row="Yes"),"Yes","No"))
Comes back as "#UNPARESABLE".
Can anyone give advice?!?
Many thanks