Hello there, @Iesguerra.

Let me share some information about the send reminders in QuickBooks Online (QBO).

When your contractor received the invitation and clicked the link, the send reminder option will not show anymore. If they haven't completed the set up yet, you will need to contact the contractor to complete it.

For your reference, please see this article: Invite a contractor to add their own tax info. 

You might want to check this article for reference in case you want to edit your contractor's payment in the future: Add or edit contractor payments (for 1099 filings).

Please know that you can always get back to us if you have other questions. I'm more than happy to help.