You'll have to remove and reinvite the user, Neal. I'll guide you through the setup process to ensure the user is added as an employee.
There's a great chance that you've selected a vendor when syncing the team member. Currently, there's no option to switch it directly as an employee. Alternatively, you can remove the user and invite them again.
Here's how to delete a user:
- Go to Settings and select Manage users.
- Click the Action dropdown on the user you want to delete, then choose Delete.
- Select Delete user from the pop-up window to confirm.

Once done, invite them again. This time, sync the appropriate team member set up as an employee. Here's a sample image for your visual reference:

After adding the user successfully, they refer to these articles for complete guidance on entering their own time activities:
Please let us know if you require further assistance adding and managing users in QuickBooks Online. We are always here to help.