When you have transactions, invoices or bookings in multiple currencies, it’s important to convert these into a single currency before doing aggregations. For example you might want to calculate total revenue per month, with sales being done in multiple currencies.

Step 1: import exchange rates

Go to Connections, and add a connection to one of the currency exchange rates connectors, for example Norway Bank (Norges bank).

This will sync a table into your account with exchange rates:

Step 2: join your transactions with the exchange rates

Write a query that joins your transactions on the currency exchange rates.

• Make sure to perform a LEFT join and not an INNER JOIN, to make sure that no transactions would be left out because of a missing matching record in the currency exchange table.
• Make sure to join on both the currency and the date of the transaction.
• Add a column with the converted amount: transaction amount x rate from the currencies table

Example query:

SELECT 
	transactions.*,
  transactions.amount * rate AS converted_amount 
FROM transactions
LEFT JOIN currencies
ON transactions.currencycode = rate_currency AND transactions.date = rate_date

Step 3: check the result

Double check if any converted amounts are missing:

If OK, use this table going forward in your aggregations, charts etc.