Creactives-MG Prompt is a tool that analyses the description of a new material or service, automatically suggesting the most suitable material group. MG Prompt helps users in real time, from directly within the ERP interface. The correct material group is inferred by analysing historical attribution patterns as well as semantically analysing the description provided, possibly enhanced by custom policy-based criteria. If these suggestions are not enough, the user can browse or filter the hierarchy to choose a different material group: this event is logged and used as implicit feedback, automatically improving future suggestions. Good reporting requires a detailed material group hierarchy. Conventional tools tend to increase errors as the MG hierarchy expands, because manually assigning material groups is a complex task: average misattribution in ERPs is over 30%, which compromises many corporate processes.