Maintaining the Assignment Between Change Document and Event With Field Restrictions 
Prerequisites
To restrict the event creation with regard to whether the change refers to specific fields or fulfills specific conditions, proceed initially as described under
Maintaining the Assignment Between Change Document and Event Without Field Restrictions.Procedure
This displays the screen for changing a condition. You process the condition in the upper half of the screen. An existing condition may already be displayed there.
Refer to the documentation on the
condition editor.
Via the dependent view Field restrictions, you can determine a more simple field restriction (comparison of an "old" value with a "new" value). From there you can also branch to the condition editor via the function expert mode.