diff --git a/vendor_portal_odoo/__manifest__.py b/vendor_portal_odoo/__manifest__.py
index 72b0ad05c..9035a4888 100755
--- a/vendor_portal_odoo/__manifest__.py
+++ b/vendor_portal_odoo/__manifest__.py
@@ -21,7 +21,7 @@
 #############################################################################
 {
     'name': 'Odoo Vendor Portal',
-    'version': '17.0.1.0.0',
+    'version': '17.0.1.0.1',
     'category': 'Purchases',
     'summary': """Vendor Portal Management in Odoo""",
     'description': """This module helps to sent quotations for a product 
diff --git a/vendor_portal_odoo/controllers/vendor_portal_odoo.py b/vendor_portal_odoo/controllers/vendor_portal_odoo.py
index b0f62b709..61680aaf3 100755
--- a/vendor_portal_odoo/controllers/vendor_portal_odoo.py
+++ b/vendor_portal_odoo/controllers/vendor_portal_odoo.py
@@ -77,7 +77,6 @@ class RFQCustomerPortal(CustomerPortal):
             'In Progress': {'label': _('In Progress'),
                             'domain': [('state', '=', 'in_progress')]},
         }
-        # default filter by value
         if not filterby:
             filterby = 'all'
         domain += searchbar_filters[filterby]['domain']
@@ -129,11 +128,20 @@ class RFQCustomerPortal(CustomerPortal):
     @http.route(['/quote/details'], type='http', auth="public", website=True)
     def quote_details(self, **post):
         """Quote details"""
-        request.env['vendor.quote.history'].sudo().create({
-            'vendor_id': request.env.user.partner_id.id,
-            'quoted_price': float(post.get('price')),
-            'estimate_date': post.get('delivery_date'),
-            'note': post.get('additional_note'),
-            'quote_id': post.get('rfq_id'),
-        })
+        vendor_quote_history_id = request.env['vendor.quote.history'].sudo().search(
+            [('quote_id', '=', int(post.get('rfq_id'))),
+             ('vendor_id', '=', request.env.user.partner_id.id)])
+        if vendor_quote_history_id:
+            vendor_quote_history_id.write({
+                'quoted_price': post.get('price'),
+                'estimate_date': post.get('delivery_date')
+            })
+        else:
+            request.env['vendor.quote.history'].sudo().create({
+                'vendor_id': request.env.user.partner_id.id,
+                'quoted_price': float(post.get('price')),
+                'estimate_date': post.get('delivery_date'),
+                'note': post.get('additional_note'),
+                'quote_id': post.get('rfq_id'),
+            })
         return request.redirect('/my/vendor_rfq/%s' % (post.get('rfq_id')))
diff --git a/vendor_portal_odoo/doc/RELEASE_NOTES.md b/vendor_portal_odoo/doc/RELEASE_NOTES.md
index 19e8076d8..e49c7ea16 100644
--- a/vendor_portal_odoo/doc/RELEASE_NOTES.md
+++ b/vendor_portal_odoo/doc/RELEASE_NOTES.md
@@ -4,3 +4,8 @@
 #### Version 17.0.1.0.0
 ##### ADD
 -Initial Commit for Odoo Vendor Portal
+
+#### 01.02.2024
+#### Version 17.0.1.0.1
+##### ADD
+-Bug Fix
diff --git a/vendor_portal_odoo/models/vendor_rfq.py b/vendor_portal_odoo/models/vendor_rfq.py
index 2693c6783..c940dd121 100755
--- a/vendor_portal_odoo/models/vendor_rfq.py
+++ b/vendor_portal_odoo/models/vendor_rfq.py
@@ -19,7 +19,9 @@
 #    If not, see <http://www.gnu.org/licenses/>.
 #
 #############################################################################
+
 from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
 
 
 class VendorRFQ(models.Model):
@@ -50,7 +52,8 @@ class VendorRFQ(models.Model):
                                help="Quotation closing date")
     vendor_ids = fields.Many2many('res.partner',
                                   domain="[('is_registered', '=', True)]",
-                                  help="Vendors you want to send quotations")
+                                  help="Vendors you want to send quotations",
+                                  required=True)
     vendor_quote_history_ids = fields.One2many('vendor.quote.history',
                                                'quote_id',
                                                string="Vendor Quote History",
@@ -71,6 +74,18 @@ class VendorRFQ(models.Model):
         default=lambda self: self.env.company, help="Select Company"
     )
 
+    @api.constrains('vendor_quote_history_ids')
+    def _check_vendor_id(self):
+        vendor_count = {}
+        for rec in self.vendor_quote_history_ids:
+            vendor_id = rec.vendor_id.id
+            vendor_name = rec.vendor_id.name
+            if vendor_id in vendor_count:
+                raise ValidationError(
+                    _("Vendor '%s' has already submitted a quotation.") % vendor_name)
+            else:
+                vendor_count[vendor_id] = vendor_name
+
     @api.model
     def create(self, vals):
         """Create function"""
diff --git a/vendor_portal_odoo/views/vendor_rfq_views.xml b/vendor_portal_odoo/views/vendor_rfq_views.xml
index 626fa2ea1..8c3140ab0 100755
--- a/vendor_portal_odoo/views/vendor_rfq_views.xml
+++ b/vendor_portal_odoo/views/vendor_rfq_views.xml
@@ -62,7 +62,7 @@
                             <field name="vendor_quote_history_ids">
                                 <tree editable="bottom">
                                     <field name="vendor_id"/>
-                                    <field name="quoted_price"/>
+                                    <field name="quoted_price" required="vendor_id"/>
                                     <field name="currency_id" invisible="1"/>
                                     <field name="estimate_date"/>
                                     <field name="note"/>