diff --git a/models/workflow/workflow_mongo_accessor.go b/models/workflow/workflow_mongo_accessor.go
index 220e4e5..ca08ab6 100644
--- a/models/workflow/workflow_mongo_accessor.go
+++ b/models/workflow/workflow_mongo_accessor.go
@@ -138,6 +138,10 @@ func (wfa *workflowMongoAccessor) book(id string, realData *Workflow, execs []*w
 }
 
 func (wfa *workflowMongoAccessor) execution(id string, realData *Workflow, delete bool) (int, error) {
+	if realData.Schedule == nil {
+		realData.ScheduleActive = false
+		return 200, nil
+	}
 	var err error
 	nats := tools.NewNATSCaller()
 	res, code, _ := wfa.LoadOne(id)
@@ -154,9 +158,13 @@ func (wfa *workflowMongoAccessor) execution(id string, realData *Workflow, delet
 		nats.SetNATSPub(utils.WORKFLOW.String(), tools.REMOVE, realData)
 		return 200, err
 	}
-
-	if r.Schedule != nil && r.Schedule.Start == realData.Schedule.Start && r.Schedule.End == realData.Schedule.End && r.Schedule.Cron == realData.Schedule.Cron {
-		return 200, nil
+	if r.Schedule != nil {
+		if r.Schedule.Start != nil && realData.Schedule.Start != nil && (r.Schedule.Start.Equal(*realData.Schedule.Start) || r.Schedule.Start.After(*realData.Schedule.Start)) {
+			return 200, nil
+		}
+		if r.Schedule.Start == realData.Schedule.Start && r.Schedule.End == realData.Schedule.End && r.Schedule.Cron == realData.Schedule.Cron {
+			return 200, nil
+		}
 	}
 	accessor := (&workflow_execution.WorkflowExecution{}).GetAccessor(nil)
 	execs, err := wfa.getExecutions(id, realData)