Trigger not firing when automatically update record in Termination_request__c object

Question

I'm Trying to deactivate users belongs to account/contacts which related to Termination_request__c object. based on one approval process the status__c field in Termination_request__c record will update. Whenever status field updated, the Termination request trigger should fire. But not firing. What could be the problem.

Here is my trigger which should fire:

trigger TerminationRequestTrigger on Termination_Request__c (before update, after update) {
    Trigger_Controls__c CS = Trigger_Controls__c.getOrgDefaults();
     if(CS.Termination_Request_Trigger__c){// trigger toggle
        TerminationRequestTriggerHandler handler = new TerminationRequestTriggerHandler (Trigger.isExecuting, Trigger.size);
        //Runs on before update only
        if(Trigger.isBefore && Trigger.isUpdate) {    
             system.debug('======>');
            //handler.OnBeforeUpdate(trigger.new);
            handler.OnBeforeUpdate(trigger.new,trigger.newMap,trigger.oldMap);
        }//end of before update only
        //Runs on after update only
        else if(Trigger.isAfter && Trigger.isUpdate) {   
            handler.OnAfterUpdate(trigger.new, trigger.newMap, trigger.oldMap);
        }//end of after update condition
    }// end of trigger toggle
}

Answer 1

Looking at your trigger Code one thing to note is there is custom setting named Trigger Controls which has a field named "Termination_Request_Trigger__c".Check if this value is checked.

Also best way to debug apex triggers is to use developer console and use system.debug at appropriate points to check flow of your trigger.