Diagnosis
The trial monitor cannot be used for the current trial because thesystem was unable to instantiate the monitor tasks.
Causes:

• The trial monitor task group referenced in the trial type
Customizing settings does not contain any tasks.

• The tasks in the trial monitor task group are not
assigned to an ABAP class.

• The ABAP classes of the tasks in the trial monitor task
group cannot be instantiated.

Procedure
Check the Customizing settings for the monitor trial group &V1&and the settings for the tasks in the task group.