Hi, @ashishahuja1.

We can refresh your bank, to check if the missing transaction will appear after refreshing the banking page. Just click the Gear icon and select Bank accounts. Then, click Refresh all.

If the transactions are still missing, you can manually import it in QBSE.

Here's how: 

1. Go to the Gear icon and select Import.
2. Choose the account you want to add the transactions.
3. Click the Browse button and find the file you've downloaded from your bank.
4. Select the file and open it to start the import.
5. Review the column headers and data.
6. Hit Continue to complete the import.

You can also manually add the missing transactions in QBSE. Just refer to these articles for the steps and details:

• Manually add transactions in QuickBooks Self-Employed
• Add older transactions to QuickBooks Self-Employed
•  

I'm adding our self-help article it provides tips in managing your account in QuickBooks.

Please let me know if you need additional help with the steps I've provides above or any other concerns. I'm always here to help. Have a good one and stay safe.