I've got some steps to help you obtain a copy of the 944 forms in QuickBooks Online Payroll.
To begin, if you submitted the 944 forms directly to us, you can find it in the Archived Forms and Filings section. Here's how:
Go to Taxes, then select Payroll Tax.
Click on the Filings tab.
Scroll down to Filing Resources and click on Archived forms and filings.
Filter by the date for the specific form you need.
Once you locate the 944 forms for that year, click View.
Finally, click the print icon above to obtain your copy of the 944 forms.
Moreover, if you couldn't find it, I suggest pulling up the Payroll Tax and Wage Summary report and using it as a reference to fill out form 944 outside QBO.