Use
A linkage defines the assignment of
events to the event receivers interested in them.The potential receiver of an event must define the linkage. This can be done using function modules provided or a maintenance transaction.
Type linkages and instance linkages are used within Business Workflow. Workflows and tasks can be started when a particular event occurs using type linkages, and work items can be continued using instance linkages.It is only necessary to maintain linkages manually if you use events within your own separate developments. If events are used exclusively within the SAP Business Workflow environment, all the definitions required are carried out by the workflow system.
Features
The workflow system in the form of the
event manager evaluates all the events created. In doing this, the event manager carries out the following steps:Linkages that are evaluated by Business Workflow must have the entry
WORKITEM or EVENTITEM or a workflow/task ID as receiver type.For more information on using these function modules, see
If the event manager does not find any relevant linkages, the event has not effect. Events are not buffered so that they can be delivered at a later date.
It is, however, possible to temporarily store a receiver to be started due to an event in the
The linkage between the creator and the receiver can be activated and deactivated at definition time and even at runtime for a specific situation or customer using an indicator.
Activities
For an overview of the type linkages that are defined, choose Tools ® Business Workflow ® Development ® Administration ® Event Manager ® Type Linkages. For an overview of the instance linkages that are defined, choose Tools ® Business Workflow ® Development ® Administration ® Event Manager ® Instance Linkages.
For more information about the linkages used by SAP Business Workflow, see
Evaluation and Maintenance of Instance Linkages and Evaluation and Maintenance of Type Linkages.