Overstock, excessive stock, or excess inventory arise when there is more than the "right quantity" of goods available for sale, or when "the potential sales value of excess stock, less the expected storage costs, does not match the salvage value". It arises as a result of poor management of stock demand or of material flow in process management.
Overstocking, excessive inventory, or surplus stock emerges when there are more items than needed for sale, or when "the remaining value of excess stock after accounting for storage expenses doesn't match its potential resale value". This typically results from inadequate stock control or improper handling of material flow in production processes.