Good morning, Eazi.

Thanks for reaching out here in the Community. I'd be glad to lend a hand so you're able to use a different currency within your QuickBooks Online account.

This can be done by using the multicurrency feature. Multicurrency allows you to assign a currency to most types of accounts, including customers, vendors, bank and credit card accounts, accounts receivable, and accounts payable. According to the About Multicurrency article, "Income and expense accounts always use your Home currency. Your Home currency is the currency of the country where your business is physically located. You can only assign one currency to each account or contact name, and you have to add a new account for each different currency that you will use in transactions."

If you decide to use this option, here's how to turn it on:

1. Click the Gear icon in the top right corner.

2. Select Account and Settings, then the Advanced tab.

3. Choose Edit to make changes to your currency settings.

4. Check the box for Multicurrency.

5. Select Save and Close when you're finished.

You can find out more about turning on multicurrency by following this link: Turn on Multicurrency. Please keep in mind that once this feature is turned on, it can't be turned off and your home currency can't be changed. I recommend carefully reading over each linked article before you decide to use multicurrency. 

With this info, you and your customers will be able to complete transactions by using different currencies. I'm only a comment or post away if you have any other questions.