You can send your employee's T4 slip through Workforce, info2115. I'll provide the outlined steps below for a smooth process.
QuickBooks Online (QBO) provides a robust platform for keeping employee tax information accurate and up-to-date, ensuring these records are readily available for future reference and audits.
Here's how you can resend the T4 slip:
1.Navigate to the Taxes section, then Payroll Tax.
2.Go to the Filings tab and scroll down to the Done section.

3. Find the T4 Employee slips box and click Send.
4. Select the employees to whom you want to send the T4s through Workforce, then hit Submit.
For more guidance, please refer to this article: Prepare and submit T4 slips and T4 Summary in QuickBooks Online.
In addition, I'm providing these links to help you with generating archived forms, printing, and customizing payroll reports in QuickBooks:
ResendingT4 slips ensures the employee receives the correct information needed for accurate tax filing. If you have any additional questions or concerns, please don't hesitate to click the Reply button below. I'm here to assist you whenever you need. Have a great day!