| Problem | What to check |
|---|---|
| PIN is rejected immediately | Re-enter the PIN and verify that it is current |
| You recently changed the PIN | Use the new PIN rather than the previous one |
| Multiple companies are managed | Confirm that the correct company file is open |
| Payroll features are also failing | Check payroll subscription and service status |
| QuickBooks is outdated | Install available QuickBooks updates |
| Verification fails after an update | Check account, connection, and application configuration |
| Online payroll functions cannot connect | Review firewall and security settings |
| PIN is forgotten | Use the appropriate PIN recovery/reset process |