Can I create multiple invoice template with different contents and apply them to multiple clients based on their currency and payment method?

Hi there, akber-rao.

In QuickBooks Online (QBO), you can create multiple invoice templates. However, you'll need to manually edit the details on the Message to Customer field.  

If your using a third party to receive payments, I suggest reaching out to them. This way, they can provide an alternative way using another method.

I've added this article to learn more about customising your sales form: Customise invoices, estimates, and sales receipts in QuickBooks Online. 

Keep me posted if you have other questions about invoices in QBO. I'm always here to help. Have a  great day!