We appreciate you reaching out, Nilson.
To make an ACH payment for an invoice from a company using QuickBooks Online (QBO), the company that sent the invoice needs to enable the ACH payment option on its end. We recommend contacting the company that issued the invoice to ensure that ACH payments are set up and available for your transaction.
If you require any additional assistance or have further questions, you can leave a comment, and we'll be more than happy to assist you.