I found the answer how to fix it and it is due to tax code use in the deposit. I dont know how to delete this post. How does QB create the report Sales by Product/Service Summary? Based on my understanding, it should be from the product and service listings when an invoice or sales receipt was created. However, when I generate the report Sales by product and service summary it shows some transactions under category not specified. These are not discounts and rather it is just a security deposit. These has been part of sales by product summary. That's why I want to understand how QB prepare the report in background? So that I can correct if there's a mistake on our side.