Reasons why Nintex Workflow doesn't start automatically

Guys,

Nintex workflow doesn’t start automatically because of  :

1.  Either you are running your workflow with “System Account” or
2.  In workflow settings  "when items are created/modified set to No" like below figure 

·                                                                   

·        To change this setting to Yes --> Go to your workflow --> Ribbon-->Workflow Settings --> Select Yes in the dropdown.