Prerequisites
You'll need CRM Administrator rights to follow the steps in this article.
Step 1: Open System Settings
First, navigate to the System Settings.
Step 2: Search for the Setting
Next, click into the search icon then search for 'currenc' - this will cover the words "currency" and "currencies".
Step 3: Choose your Options
Here you can decide whether or not to import your currency exchange rates. If you select "Do not import currencies", you can click to configure them instead above.
Step 4: Configuring Currencies
Once you've selected 'Click to Configure', you're able to type in your own exchange rates for each country.