I can't I dentify my cost of sale even I alrdy key in my cost of sale n my stock show negative number. How I can do the adjustment

Hello there. I know how important this is for you to keep track I'm here to help you to correct your Cost of Sales amount.

In this case, adding to the product details is effective for upcoming transactions. In essence, whenever you add a stock (inventory) item, QuickBooks creates a Stock starting value transaction in the background that includes the initial cost (cost of sale plus the stock asset value). If you didn't include a setup fee, there will be no cost of sale when you sell the item. We can update and add the cost to the item's Stock starting value transaction to fix this.

Here's how:

1. Go to the Gear icon.
2. Select Products and services.
3. Click the dropdown arrow beside the Edit on the item in concern.
4. Tap Run report.
5. Set the Report period to All dates.
6. Find the first transaction that says Stock starting value and click to open it.
7. Update the Initial cost.
8. Then click Save and close.

You can also check about customising reports for further guidance on how you can filter the data you only need.

I'd also suggest consulting with your accountant for the process. So they can guide you further about entering your cost of sales and ensuring the accuracy of your books. If you’re not affiliated with one, you can check our ProAdvisor page to help you find one from there.

Moreover, you may want to see this article to learn more about inventory quantity: Adjust inventory quantity on hand in QuickBooks Online.

Please post a comment below if you need further assistance. I'll get back to you as soon as possible. Take care!