Google announced that AdWords advertisers can now add currency information to their conversion values to more easily measure revenue when accepting more than one currency on their site or app.
If you add currency info to your conversion values, all generated sales will be converted into the same currency used for AdWords billing. Google explains in a Google+ post:
Let’s say you’re an online retailer based in the UK, promoting your products from an AdWords account billed in pounds (£). You accept payments in three currencies on your site--pounds, euros and dollars. Previously, when a customer paid for something in euros or dollars, you had to convert the payment into pounds in order to reconcile all the currencies into a single revenue amount for your business.
Now, AdWords will convert the payment currency from euros and dollars to pounds, so you don’t have to. When you have both your costs and sales all in one currency, you can calculate a more meaningful return on investment.
This page explains how to add currency to your conversions.
Google notes that if you import goals and transactions from Google Analytics, you can just choose a currency, and AdWords will do the conversion for you.
Image via Google