Let me provide some information about accessing QuickBooks Online Payroll on a mobile phone, @napier.
We can run payroll on our mobile devices by accessing QuickBooks Online (QBO) via a web browser. By using any browser installed on your phone, you can log into your QBO account and begin managing your employees.
However, if you're referring to the mobile app, the feature mentioned indicates that any QBO account linked with the payroll service cannot run payroll through the mobile app.
Moreover, to discover which features of the QuickBooks Online mobile app are supported on mobile devices, you can check out this article: Compare mobile app features.
For guidance on completing this year's payroll and preparing for the next year, scan this article: Year-end checklist for QuickBooks Online Payroll.
I'll be around the corner if you have any further questions about accessing payroll on your devices, @napier. Stay safe!