I'm glad to see you here in the Community, saranya. I'll help you access your employee's pay details in a given period in QuickBooks Online (QBO).
To check for your employee's pay stub details in QBO, we can maximize the Payroll summary by employee report in QBO and check the data from there. Here's how:
Open your QBO account. Then, go to the Reports menu.
From the Standard tab, enter the Payroll summary by employee on the Find report by name search bar.
Modify the Payroll period accurately and press Apply.
Click Customize and choose the employee on the Employee dropdown.
(Optional) tick the details you want to include in the data from the What to include section.
Once done, select Run Report.
Additionally, here's an article that can help you manage your payroll reports and get a closer look at your business finances: Run payroll reports.
I'll be around if you have more questions regarding your employee's pay stub and other QuickBooks-related queries. Take care!