AE - Workflow "ready for start" for a long time with "Waiting for user input" error

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

Workflow don't run with status "ready for start"(Blue) and "Waiting for user input" error in Detail tab. 

Cause

Child tasks inside the workflow are waiting for data from user to run.

Environment

Release:
Component: AAUTEN

Resolution

Choose the option "Request User Input" in job that need user intervention.

Additional Information

Workflow editor document:
https://docs.automic.com/documentation/webhelp/english/ALL/components/DOCU/12.0/AWA%20Guides/help.htm#AWA/Objects/wf_PropertiesPane_GeneralTab.htm%3FTocPath%3DUser%2520Guide%7CProcess%2520Assembly%2520Perspective%7CWorkflows%7CDefining%2520Task%2520Properties%2520in%2520Workflows%7C_____1