Welcome to the Community forum, @fccmky.
When running payroll, you change the Pay period by clicking the drop-down arrow. You can see below screenshot for visual guidance:
To learn more about running payroll in QuickBooks Online, you can watch a video tutorial through this article: How to run Payroll.
You may also find this resource helpful: Run payroll from the QuickBooks Online app.
If there’s anything else you need help with in processing payroll, you can reach back out. I'm here to answer it for you. Have a great day!
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