To excel as a General Merchandise Manager (GMM), you need strong expertise in merchandising, category management, and retail operations, typically supported by a degree in business or a related field. Familiarity with inventory management systems, sales analytics tools, and forecasting software is crucial for data-driven decision-making. Excellent leadership, negotiation, and communication skills help GMMs build high-performing teams and successful vendor relationships. These abilities are vital for optimizing product assortments, maximizing sales, and driving profitability in a competitive retail environment.