You can check the email message to confirm the specific code and verify why your payment has been rejected afterward, ljcpoolsandconstruct.
If you're using QuickBooks Payments and your ACH payment is rejected, there could be several reasons for this, which are indicated by the R## code you receive. You will get an email that includes a specific code detailing the issue and providing steps to resolve it.
In addition, I'm including these articles that explain how to deposit payments into the Undeposited Funds account and manage your deposits along with payments processed through QuickBooks Payments: