diff --git a/cor_custom/models/project.py b/cor_custom/models/project.py
index fdc6dc9..ccd94e8 100755
--- a/cor_custom/models/project.py
+++ b/cor_custom/models/project.py
@@ -329,16 +329,24 @@ class InheritProjectProductEmployeeMap(models.Model):
     @api.constrains('start_date', 'end_date')
     def _check_dates(self):
         for val in self:
-            if val.end_date and val.start_date:
-                if val.end_date < val.start_date:
-                    raise ValidationError(_('Start date must be earlier than end date.'))
-                domain = [
-                    ('start_date', '<=', val.end_date),
-                    ('end_date', '>=', val.start_date),
-                    ('project_id', '=', val.project_id.id),
-                    ('employee_id', '=', val.employee_id.id),
-                    ('id', '!=', val.id)
-                ]
+            if val.start_date:
+                if val.end_date:
+                    if val.end_date < val.start_date:
+                        raise ValidationError(_('Start date must be earlier than end date.'))
+                    domain = [
+                        ('start_date', '<=', val.end_date),
+                        ('end_date', '>=', val.start_date),
+                        ('project_id', '=', val.project_id.id),
+                        ('employee_id', '=', val.employee_id.id),
+                        ('id', '!=', val.id)
+                    ]
+                else:
+                    domain = [
+                        ('end_date', '>=', val.start_date),
+                        ('project_id', '=', val.project_id.id),
+                        ('employee_id', '=', val.employee_id.id),
+                        ('id', '!=', val.id)
+                    ]
                 res = self.search_count(domain)
                 if res > 0:
                     raise ValidationError(_('Same Consultant can not have 2 same date that overlaps on same day!'))
diff --git a/cor_custom/wizard/project_resource_wizard.py b/cor_custom/wizard/project_resource_wizard.py
index 666c70d..59ba4d0 100755
--- a/cor_custom/wizard/project_resource_wizard.py
+++ b/cor_custom/wizard/project_resource_wizard.py
@@ -30,6 +30,12 @@ class ProjectResourceWizard(models.TransientModel):
     def action_add_project_lines(self):
         record = self.env['project.sale.line.employee.map']
         for val in self.add_project_resource:
+            ############
+            if self.project_id.sale_line_employee_ids:
+                for emp in self.project_id.sale_line_employee_ids:
+                    if emp.employee_id == val.employee_id and emp.end_date == False and val.start_date:
+                        emp.write({'end_date': val.start_date - relativedelta.relativedelta(days=1)})
+            #################
             values = {
                 'project_id': self.project_id.id,
                 'employee_id': val.employee_id.id,
@@ -44,10 +50,6 @@ class ProjectResourceWizard(models.TransientModel):
             if self.project_id.hour_distribution == 'Percentage':
                 values.update({'distribution_per': val.distribution_per})
             record.create(values)
-            ############
-            for emp in self.project_id.sale_line_employee_ids:
-                if emp.employee_id == val.employee_id and emp.end_date == False and val.start_date:
-                    emp.write({'end_date': val.start_date - relativedelta.relativedelta(days=1)})
         return True