ProductMix allows to generate an invoice for your payment with the details you wish. The tutorial will show how to do that.
From your ProductMix Dashboard open the Settings tab and click Billing.
Click View payment history.
Choose the appropriate payment and click Generate.
Once the invoice is generated, you can edit the invoice details as per your needs by clicking on the mentioned option from the screenshot below.
That’s it. Now you know how to generate invoices on ProductMix.