A **Service Portfolio** is an entity within the [[Manage Portfolio (CSDM domain)|Manage Portfolio domain]] of the [[Common Service Data Model|Common Service Data Model]] (CSDM), a reference architecture developed by [[ServiceNow|ServiceNow]] that provides prescriptive guidance on service-related definitions and data modeling within the ServiceNow AI Platform. A Service Portfolio represents a hierarchical classification of [[Business Service (CSDM)|business]] and [[Technology Management Service (CSDM)|technology management services]] that defines strategic business value and facilitates the management of their life cycle. Service Portfolios are recorded in the service_portfolio table and are not [[Configuration item|configuration items]]. They provide the structure for organizing services within [[Service Portfolio Management (CSDM)|Service Portfolio Management (CSDM)]], enabling service owners to manage portfolios and gain understanding of service-related information including service trends, improvement initiatives, performance, and outage monitoring through the Service Owner Workspace. Beginning with the Rome release, [[Technology Management Service (CSDM)|Technology Management Services]] can be managed as part of the Service Portfolio, allowing for a more complete hierarchy of both technical and business services. Service Portfolios can be referenced from Business Services using the "Is part of" reference attribute, enabling organizations to categorize services by business function, capability, or organizational structure. This hierarchical view supports investment decisions and rationalization efforts in conjunction with [[Strategic Portfolio Management (ServiceNow)|Strategic Portfolio Management (ServiceNow)]] and [[Enterprise Architecture (ServiceNow)|Enterprise Architecture]] across the [[CSDM Service Life Cycle|CSDM Service Life Cycle]].