3680038 - Error "Not possible to delete MRP area 1010, as it is assigned to material ABCD" while attempting to delete an MRP area

An error message "Not possible to delete MRP area 1010, as it is assigned to material ABCD" is displayed when trying to delete an existing MRP area entry. 

MRP areas, Deletion, SAP S/4HANA Cloud Public Edition, Material Requirements Planning, transport deletion, quality system, productive system, validity deprecated, unassigning MRP areas, Configuration, Material assignments, Deletion Indicator, Schedule Unassigning of MRP Areas , KBA , PP-MRP-2CL , Material Requirements Planning (Public Cloud) , Problem