Great to have you here, qbwarpcapitalhk.

 

If you're referring to assigning a foreign currency to a customer, yes you can use the USD currency as a functional one in QuickBooks Online Hongkong region. You'll need to create a new customer profile and choose the foreign currency that they use to pay you for products or services. Then, create the transaction and assign the USD currency to your customer.

 

For the detailed steps, you can check out the Assign a foreign currency or multicurrency to a customer article.

 

I have articles here to learn more about Multicurrency: