I'm here to help, tamrow.
If you're on the Review your contractors' info page, you can click the Edit link and select the Contractor Type (Business or Individual) to enter the missing information.
Here's a sample screenshot for a visual reference:
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I'm adding this article to help you with the process: Create and file 1099s using QuickBooks Online. To view other articles and guides, feel free to visit out general help topics page.
If there's anything else you need help with QuickBooks Online, please let me know and I'll get back to you as soon as I can. Take care!