Visit the Receivables settings page and scroll to the "Manage payment methods" section. Click on "Payout speed" under the "Credit or debit card" section.

And select the "Next business day" payout option. All new payment requests and custom payments will have the next business day settlement option automatically selected.

When you're creating a new payment request or a new custom payment page, scroll down to the "Payment methods available" section and click on "Payout speed" under the "Credit or debit card" section.

And select the "Next business day" payout speed option for this payment request/ custom payment page.