diff --git a/addons/sale/views/sale_views.xml b/addons/sale/views/sale_views.xml
index 5c88e698f05..b871768b654 100644
--- a/addons/sale/views/sale_views.xml
+++ b/addons/sale/views/sale_views.xml
@@ -157,8 +157,12 @@
                     <button name="action_quotation_send" string="Send by Email" type="object" states="draft" class="btn-primary"/>
                     <button name="action_quotation_send" type="object" string="Send PRO-FORMA Invoice" groups="sale.group_proforma_sales" class="btn-primary" attrs="{'invisible': ['|', ('state', 'in', ['sent', 'sale']), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
                     <button name="print_quotation" string="Print" type="object" states="draft" class="btn-primary o_sale_print"/>
-                    <button name="action_confirm" id="action_confirm" states="sent" string="Confirm Sale" class="btn-primary" type="object" />
-                    <button name="action_confirm" states="draft" string="Confirm Sale" type="object" />
+                    <button name="action_confirm" id="action_confirm"
+                        string="Confirm Sale" class="btn-primary" type="object"
+                        attrs="{'invisible': [('state', 'not in', ['sent'])]}"/>
+                    <button name="action_confirm"
+                        string="Confirm Sale" type="object"
+                        attrs="{'invisible': [('state', 'not in', ['draft'])]}"/>
                     <button name="action_quotation_send" type="object" string="Send PRO-FORMA Invoice" groups="sale.group_proforma_sales" attrs="{'invisible': ['|', ('state', '=', 'draft'), ('invoice_count','&gt;=',1)]}" context="{'proforma': True}"/>
                     <button name="print_quotation" string="Print" type="object" states="sent,sale" class="o_sale_print"/>
                     <button name="action_quotation_send" string="Send by Email" type="object" states="sent,sale"/>
diff --git a/addons/website_sale/views/sale_order_views.xml b/addons/website_sale/views/sale_order_views.xml
index 3a7b291ec2b..dc2c8896fa2 100644
--- a/addons/website_sale/views/sale_order_views.xml
+++ b/addons/website_sale/views/sale_order_views.xml
@@ -125,13 +125,15 @@
         <field name="inherit_id" ref="sale.view_order_form"/>
         <field name="arch" type="xml">
             <xpath expr="//button[@name='action_quotation_send']" position="after">
-                <button name="action_mark_as_paid" type="object" string="Mark as Paid" states="sent,sale" class="btn-primary" attrs="{'invisible': [('can_directly_mark_as_paid', '=', False)]}"/>
+                <button name="action_mark_as_paid" type="object"
+                    string="Mark as Paid" class="btn-primary"
+                    attrs="{'invisible': ['|', ('can_directly_mark_as_paid', '=', False), ('state', 'not in', ['sent', 'sale'])]}"/>
             </xpath>
             <field name="partner_id" position="after">
                 <field name="can_directly_mark_as_paid" invisible="1"/>
             </field>
             <xpath expr="//button[@id='action_confirm']" position="attributes">
-                <attribute name="attrs">{'invisible': [('can_directly_mark_as_paid', '=', True)]}</attribute>
+                <attribute name="attrs">{'invisible': ['|',('can_directly_mark_as_paid', '=', True), ('state', 'not in', ['sent'])]}</attribute>
             </xpath>
         </field>
     </record>