When the Negative Inventory Feature is Activated in your Outlet, you can make sales with Zero inventory on your products. And it causes your product to be minus in the inventory.
We provide a feature to see which Products that have minus stocks and here are the steps to see on the DealPOS application :
Step 1. Go to Inventory then click Negative on More Menu

Step 2. View Product with Negative
In this page the system will display a list of products that have minus or negative stock (-). You can also export it in CSV format by clicking the Export button in the top right corner.

View Of CSV File :

You might also like to read these articles below:
Here's the article to Allow Negative Inventory on your Outlet
You also can Check Inventory with the Highest Quantity