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Creating an exchange rate slicer in PowerPivot
A way to create a slicer in PowerPivot to choose which exchange rate to use (ie for which currency to show results).

Posted by Andy Brown on 11 March 2016

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Using disconnected slicers for exchange rates

A question from a course I've just given (thanks, Anne!) - how to achieve the following?

Slicer for currency rate

When you select an exchange rate, PowerPivot recalculates the pivot table to use it.

Of course, if you choose more than one rate (or indeed, none at all), you want to see something like this:

More than one rate selected

If you have more than one rate selected, show zeros (or blanks).


Since it's a nice little problem in PowerPivot, I thought I'd give one possible answer.  You can download the file I've used here.

The tables involved

The workbook I've used contains two tables (I've used linked Excel tables):

Two tables

The two tables in my model.

The thing to realise is that there is no relationship between these two tables!  You'll only ever have one currency rate selected at a time, so what we'll do is use this rate in our calculations.

The measure which does the work

I'm sure there are other ways to solve this, but here's mine:

A measure giving total sales

The measure sums the price in local currency divided by the exchange rate, but only if there's exactly one exchange rate selected in the pivot table.

Here's the measure:





[Price in pounds]/MAX(Currencies[Rate])),



Here's what this does:

  1. Looks at the currently selected values for the currencies, taken from the choices the user has made in the slicer.
  2. Counts how many values there are, and returns 0 if either there aren't any currencies selected, or the user has selected more than one.
  3. If a user has selected exactly one currency, the measure finds the maximum currency rate (because there only is one, this will give the rate for the currency selected).
  4. The measure then sums the price in pounds divided by the currency rate to use.

It helps to understand this to realise that we could have taken the minimum, sum or average of the currency rate instead.  If you know you only have one value, its minimum, maximum, sum and average are all the same!

Finally ...

One downside of this solution is that it leaves this messy box visible in the pivot table fields list:

Pivot table fields list box

The yellow box about relationships is annoying! It's there because we have two tables in our data model which have no link between them, but that's by design!


Sadly, there doesn't seem to be any way in Excel 2013 onwards to remove this yellow warning.

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