A product may become unsold when its expected demand is not realized. The problem is more manageable if it emerges before the end of the useful period. Organizational reading must keep the commercial forecast and the conditions that allow the product to be used or transferred separate.
I propose to identify early signals, such as residual quantities and sales pace. Possibilities for redistribution or other destinations require verification of relevant rules, safety and responsibilities. A commercial availability does not automatically prove that any subsequent use is permitted or appropriate.
Imagine a network that late knows a surplus at a point of sale. Even if there is demand elsewhere, transfer time can make the solution impractical. An early warning allows you to evaluate alternatives within the authorized route.
The review should go back to the causes of the surplus and when it became visible. Managing the unsold and preventing it are related but different activities. A useful organization makes the information timely and keeps the product treatment consistent with the actual conditions and the necessary skills.