Error Handler

[sureshs3]

Need to Enable Error Handler in subflow to send an email notification to end user and cancel the request when subflow moved into error state. 

[Ethan Davies]

If you follow the steps listed in the below documentation - you'll be able to meet your requirement.

https://developer.servicenow.com/dev.do#!/learn/courses/utah/app_store_learnv2_flowdesigner_utah_flo...