This field displays a change request ID if this product, or the specific version or revision of this product is associated with an 'active' change request. An active change request is a change request at the planning or implementation stage of the processing cycle. A warning icon is displayed adjacent this field.
If a warning icon is displayed you should consider delaying the creation or amendment of a routing for this product until the change request identified is closed. At that point a change to this product will have either been seen through to its conclusion and the change delivered, or the change request rejected. You will not, however, be prevented from creating or amending a routing should you decide to do so.