Welcome to the thread, chbi.

I appreciate the screenshot you've provided. This helped me find the fix to your concern.

The option to send a reminder will only show if your contractor's personal information is incomplete or you haven't entered any. Since you're not seeing an option to send a reminder, chances are, the Personal details of your contractor have been completed.

Let's go and edit your contractor’s profile by following these steps:

1. Go to Expenses from the left menu, then select Vendor.
2. Choose the contractor’s name.
3. Click Edit at the top right.
4. Remove Business ID No., and then select Save.
5. Go to Payroll menu and select Contractors.
6. Select the contractor’s name.
7. Click Send a reminder.
   

Here's an article that you can through about sending invites to a contractor: Invite a Contractor.

You can also check out our help articles in case you need tips and guide links in the future.

For additional questions about sending reminders or anything about QuickBooks. just let me know through a reply below, Have a good one!