The discrepancy may be due to negative Lot Numbers. To verify that, a Saved Search may be created. Here are the steps:
1. Navigate to Lists > Search > Saved Searches > New.
2. Choose Inventory Numbers.
3. On the Criteria tab > Standard subtab > Add Filters:
- Item = set it to Item/s in question
- On Hand = less than 0.
4. Name your Saved Search.
5. Click Save & Run.
Negative Lot Numbers may result when an inventory-adding transaction is deleted after an Item Fulfillment is entered in the system.
To resolve this, a positive Inventory Adjustment may be created using those Lot Numbers in question.