I have idea about how the approval is work for normal scenario like user click on approval , it will got to manager, he will approve or reject based on action we are able update/trigger any event.
In my scenario , I have Requirement when user click on button called "approval Process" I have to send the task to Manager approval.
if you observe the diagram clearly . I have 4 different level of user group, once user click on submit for approval, approval will sent to all 4 group.
Criteria For Reject: When "Any one user" in "Any of the Group" click on the reject, I have update status to reject in task.
Criteria For Accept : When "Any one user" of the "Each Group" should click on the accept ie.. all the 4 group manager has accept then, I have update status to Accept in task.
How to achieve this functionality using salesforce OOTB functionality ? Any help please ...