About Work Units
A Work Unit is a generic task that is required to fulfill a Service Request. Work Units are grouped together in one or more Service Catalog Templates and then converted into individual Tasks when a Customer submits an order for a Service using the Customer Portal.
In CSM, Work Unit is a Major Business Object. The Work Unit form allows Users to view, create, track, and manage Work Units:
Note: Work Unit can be used to 
      support Multi-Sourcing Service Integration (MSI) and Service
      Integration and Management (SIAM). For more information, see 
      The
        Relationship between 
        CSM and Multi-Sourcing Service Integration and Service Integration and
        Management. 
    
 
  