It can not support 1099 file fill up , Please guide me thanks

Welcome to the Community, Hashmat.

Allow me to share insights when creating and filing 1099 here in QuickBooks Online (QBO).

If you pay contractors in cash, check, or direct deposit, you'll need to file 1099s with the IRS. QBO can help you prepare your 1099s seamlessly, using the info you already have in your account.

To create and file 1099s with QuickBooks Online:

1. Go to Payroll, then select Contractors.
2. Choose Prepare 1099s.
3. Make sure your company name, email, address, and tax ID are correct, and choose the delivery option for your contractor's copies. If you don't see this option, you've already given your contractors online access to their 1099s when you added them to QuickBooks.
4. After you file your 1099s to the IRS, QuickBooks will notify you of your filing status through email.

Please know that you start filing your 1099s starts on January 1st. Kindly refer to this article for further guidelines and information in preparing your 1099 here in QBO: Create and file 1099s with QuickBooks Online.

I would also like to ask what error you experience when trying to fill up your contractors. In that way, we can narrow down and determine specific steps to be taken toward the problem that you’re experiencing.

Furthermore, I am leaving you this article for your future reference when you that entails the plans and pricing to save time and money when you e-file your 1099 using QBO Contractor Payments or Payroll: QuickBooks Payroll Plans Pricing with QBO Contractors Payments or QBO Payroll.

Feel free to comment down below if you have further questions about filing your 1099 using QBO and if you have more details to add. I’m just a post away.