ELECTRE_Tri_B is an over-ranking multi criteria decision analysis procedure allowing the ranking of a number of scenarios related to an issue into categories in order to assist in decision-making. The code proposed here is based on the ELECTRE Tri-B multi-criteria analysis procedure and aims to classify potential scenarios into a hierarchical set of categories. The particularity of this code is that it can be used to classify any scenario related to a decision problem as long as the input data is correctly provided.