We have a scenario where the average cost of the goods has gone completely off of what we think it should be for a few items. Many reasons. But question is how do we change average cost assigned to these items without adding to the inventory?
You can change the average cost of an item by performing an average cost update.
The inventory quantity remains unaffected, but depending on whether you are increasing or decreasing the unit cost, the inventory value will get affected to that extent.
Inventory > Costs > Average Cost Update - query the concerned item and update the cost as required.