How do I change currency associated with customer?

You cannot change the currency associated with a customer if you’ve created transactions for that customer. You need to first delete the transactions created for the customer.

To change the customer’s currency:

• Go to Sales on the left sidebar and select Customers.
• Select the customer whose currency you want to change.
• Go to the Other Details section in the Overview tab of the customer.
• Click the Edit icon next to Default Currency.
• Select currency code of the currency from the dropdown.
• Click the Tick icon to change the currency.

You can also change the default currency in the Edit Customer page.