The ValidateTransitionIn validator finds activities that do not
have inbound transitions and cannot execute in the workflow.
Validation summary
Risk:Activities that do not have inbound transitions have no means
of being executed in the workflow. If other logic builds from these activities, the workflow
could hang, with no means of moving forward.
Purpose: Find activities that do not have inbound transitions.
Severity Level: Warning.
Valid Result:Valid.
Valid Message: All activities in this workflow have at least one
inbound transition.
Invalid Result: Invalid.
Invalid Message:This workflow contains <activity count> activity
conditions without an input transition.
Suggested Action:Either remove the activities to reduce confusion
and make the workflow easier to understand or provide the appropriate inbound transition.
Publishable:Yes
Runnable:Yes
Related Information:None
Troubleshooting
Although the activities detected in this validator do no harm to the execution of the
workflow, the designer needs to know that there are activities on the canvas that cannot execute
and serve no purpose, particularly in a production system. This error is typically caused by a
visual misinterpretation of the drawing.
This example workflow appears to be perfectly valid. Under closer inspection, however, we see
that the transition from Set Values does not stop at Approval
- User (there is no arrow end). Instead, that transition goes directly to
End. As a result, Approval - User cannot execute.
Because there is an activity in the workflow based on the approval's condition routing, it
appears that the designer intended for the approval to execute and that a correction is
needed.그림 1. TransitionIn invalid
This validator directs the designer to the specific activity and condition that has no inbound
transition. The designer should establish a transition or remove the activity.
