Maintaining the Assignment Between Status Change and Event 
Prerequisites
The event that you want to create is defined as a component of an object type.
The key fields of this object type must be compatible (= domain same) with the key fields of the status object type whose status change is to cause the creation of an event. The relevant information is located in the system table
TBO00 , which is maintained and supplied by SAP.This function is not available in a separated Basis system.
Procedure
Make the following settings to create an event if a status change occurs:
The screen View: Change "Events for ...Status": Overview is displayed. If you are not in change mode, select Display -> Change.

The event entered is created upon each status change for this status object type.
In the view "Status restrictions", you can define the statuses of the status object type, which must be set for the event to be triggered. If you select the field Inactive, the event is triggered when the relevant status is reset.

If you accessed maintenance of the assignment between status change and event via customer settings, you can enter either a system status or a user status (for the status profile in the first view) in each input line for the status restrictions.
You can also specify several status restrictions. In this way, you get an "AND" operation for the various restrictions.
You can get "OR" operations by defining several events for a status object type.
Result
If you have catered for the creation of an event in the manner described above, you can use this event as a
triggering event of a workflow or a task in the normal way.Event container of created event
In addition to other elements, the event container of the created event contains: