diff --git a/models/workflow/workflow.go b/models/workflow/workflow.go
index 1e0a86b..ecb6798 100644
--- a/models/workflow/workflow.go
+++ b/models/workflow/workflow.go
@@ -3,10 +3,13 @@ package oclib
 import (
 	"encoding/json"
 	"slices"
+	"time"
 
+	"cloud.o-forge.io/core/oc-lib/dbs"
 	"cloud.o-forge.io/core/oc-lib/models/resources"
 	"cloud.o-forge.io/core/oc-lib/models/resources/workflow/graph"
 	"cloud.o-forge.io/core/oc-lib/models/utils"
+	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
 type AbstractWorkflow struct {
@@ -31,6 +34,21 @@ func (d *Workflow) GetName() string {
 	return d.Name
 }
 
+func (d *Workflow) CheckBooking() bool {
+	if d.Schedule != nil && d.Schedule.Start != nil {
+		sd := primitive.NewDateTimeFromTime(d.Schedule.Start.Add(time.Second * -10))
+		ed := primitive.NewDateTimeFromTime(d.Schedule.Start.Add(time.Second * 10))
+		f := dbs.Filters{
+			And: map[string][]dbs.Filter{
+				"execution_date": {{Operator: "gte", Value: sd}, {Operator: "lte", Value: ed}},
+			},
+		}
+		res, _, _ := d.GetAccessor().Search(&f, "")
+		return len(res) == 0
+	}
+	return true
+}
+
 func (d *Workflow) GetAccessor() utils.Accessor {
 	data := New()
 	data.SetLogger(utils.WORKFLOW)
diff --git a/models/workflow/workflow_mongo_accessor.go b/models/workflow/workflow_mongo_accessor.go
index 5d35d91..7bda6e0 100644
--- a/models/workflow/workflow_mongo_accessor.go
+++ b/models/workflow/workflow_mongo_accessor.go
@@ -87,7 +87,7 @@ func (wfa *workflowMongoAccessor) execution(id string, realData *Workflow, delet
 	if r.Schedule.Start == realData.Schedule.Start && r.Schedule.End == realData.Schedule.End && r.Schedule.Cron == realData.Schedule.Cron {
 		return 200, nil
 	}
-	if !realData.CheckBooking(realData.Schedule.Start) {
+	if !realData.CheckBooking() {
 		return 409, errors.New("the booking is already taken.")
 	}
 	if delete {