I received an email stating my customers can pay affirm who will pay our invoices immediately

Hello there, Michelle. No action required from you to set this up at this time. While the Affirm payment option is not yet live, the feature is currently in its final stages of preparation. It is scheduled to roll out to eligible U.S. merchants using QuickBooks Payments over the coming months.

Once the feature is live in your specific account, you will be able to manage it directly under your QuickBooks Online Settings > Account and Settings > Sales. We recommend keeping an eye on your email for the official notification that Affirm is ready for you to use.

You can read more about this feature in this article: About Affirm payments.

The community forum is available to assist with any future queries you may have.