How do I enter the cost of the products I sell in Quickbooks?

Hi Shuru,

Thanks for posting in the Community! Let me share with you the steps on how you can enter the cost of the products you sell in QuickBooks Online. 

1. Go to Gear icon and select Products and Services.
2. Click Edit on an inventory item.
3. Enter Cost on the field provided.
4. Select Save and close.

For your reference, you can also check this article: Add inventory products in QuickBooks Online. 

Let me know if you have any other questions, we're here to help you.