Continuing economic pressures are contributing to the new popularity of outsourcing services for SAP operational services, complementing the large, well-established market for implementation services. Diverse offerings now coexist within the marketplace, including applications management services and managed services including hosting, which appeal primarily to large enterprise companies and midsize enterprises, respectively. Sourcing and vendor management professionals should be aware of the major categories of SAP operational services and how they are evolving. Buyers should also note that the most capable suppliers of SAP operation services are not always those with the most prominent implementation capabilities.