The document discusses common mistakes companies make when upgrading their SAP systems. It outlines 11 mistakes to avoid, such as ignoring opportunities for functional improvements during a technical upgrade, failing to ensure robust testing, allowing scope creep, and delivering one-size-fits-all training. The key recommendations are to explore easy functional upgrades, choose consultants with industry experience, freeze development in advance, and provide role-based training tailored to users' needs. Addressing these common pitfalls can help maximize the benefits and minimize disruptions of a SAP upgrade.