Beginning on September 12, 2023, the Backup Funding Source linked bank account feature of the PayPal Business Debit Mastercard will no longer be available. You’ll only be able to use the Business Debit card if you have existing funds in the Paypal account, per the recent Paypal Policy Update page.
Some people like to use the Paypal Business Debit card on purchases that don’t accept credit cards. As long as you can make the purchase without a PIN number, you’ll get 1% cashback reward on the Paypal Business Debit card. Going forward, you’ll need funds in the Paypal account to take advantage of this.
Hat tip to UncleB on MyFico Forums