diff --git a/__init__.py b/__init__.py
index 1cab67e..107869e 100644
--- a/__init__.py
+++ b/__init__.py
@@ -3,6 +3,7 @@
 from trytond.pool import Pool
 from . import sale
 from . import dash
+from . import party
 
 
 def register():
@@ -11,4 +12,5 @@ def register():
         sale.AppDelivery,
         sale.AppSaleOrder,
         dash.DashApp,
+        party.Party,
         module='dash_sale', type_='model')
diff --git a/party.py b/party.py
new file mode 100644
index 0000000..19810ce
--- /dev/null
+++ b/party.py
@@ -0,0 +1,9 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.model import fields
+from trytond.pool import PoolMeta
+
+
+class Party(metaclass=PoolMeta):
+    __name__ = 'party.party'
+    agent = fields.Many2One('commission.agent', 'Agent')
diff --git a/party.xml b/party.xml
new file mode 100644
index 0000000..e5c6732
--- /dev/null
+++ b/party.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="party_view_form">
+            <field name="model">party.party</field>
+            <field name="inherit" ref="party.party_view_form"/>
+            <field name="name">party_form</field>
+        </record>
+    </data>
+</tryton>
diff --git a/tryton.cfg b/tryton.cfg
index 4b1eb15..468a979 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -11,3 +11,4 @@ depends:
     dash
 xml:
     sale.xml
+    party.xml
diff --git a/view/party_form.xml b/view/party_form.xml
new file mode 100644
index 0000000..0295a68
--- /dev/null
+++ b/view/party_form.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath
+        expr="/form/notebook/page[@id='sale']/field[@name='sale_price_list']"
+        position="after">
+        <label name="zone"/>
+        <field name="zone"/>
+    </xpath>
+
+    <xpath
+        expr="/form/notebook/page[@id='sale']/field[@name='sale_price_list']"
+        position="after">
+        <label name="agent"/>
+        <field name="agent"/>
+    </xpath>
+</data>