I need to Genarate a sales report on Particular Brand In That Brand In one Segment of Sales i need reports

Glad to see you here, @poonamcomputers0.

To clarify, are you using classes to track your transactions by brand or any other segments in your business? You can utilize the Filter tool to specify that particular brand that you'd like to show in the report. 

1. Go to the Reports menu.
2. In the Sales and customers section, select your desired sales report.
3. Click the Customize button.
4. Modify the reporting date.
5. Go to the Filters section.
   
6. Click the Class drop-down and select that specific brand you want to display.
7. Click Run report.

To learn more about creating and customizing Class reports in QuickBooks Online, refer to this article: Run reports by class.

You can also check out this article to see the complete list of available reports for your QuickBooks Online version: Reports included in your QuickBooks Online subscription.
 

You can also export them to Excel to help give you the flexibility to use them. Simply click the Export icon and select Export to Excel. 

Please let me know should you need further assistance with your reports. I'm always here to assist. Have a wonderful day.