To identify the main competitors for your category or product:
Click New Report.
Click Report Type. Select Live Listings (Top 500) or Recent Sales.
Click Country and choose the relevant eBay marketplace.
You must enter a relevant keyword in the Keywords field and/or, select a category by clicking Browse by Categories.
Leave the Sellers field blank.
Click Run Report.
The report will show a data table. Check that the table is on the Sellers view (located at the top of the table). A list of sellers will appear. Click the report's column headings to sort the results. In the Search and Filter section on the left, search by seller ID.
The New Listings report may also highlight sellers that you should look into.