diff --git a/addons/sale_timesheet/views/project_task_views.xml b/addons/sale_timesheet/views/project_task_views.xml
index af077f03b1e..937dc940033 100644
--- a/addons/sale_timesheet/views/project_task_views.xml
+++ b/addons/sale_timesheet/views/project_task_views.xml
@@ -62,12 +62,25 @@
             <field name="inherit_id" ref="project.view_task_form2"/>
             <field name="arch" type="xml">
                 <field name="user_id" position="after">
-                    <field name="sale_line_id" string="Sales Order Item" attrs="{'invisible': ['|', ('partner_id', '=', False)]}" options='{"no_create": True}' context="{'create': False, 'edit': False, 'delete': False}"/>
+                    <field name="sale_line_id" string="Sales Order Item" attrs="{'invisible': ['|', ('partner_id', '=', False)]}" options='{"no_open": True}' readonly="1" context="{'create': False, 'edit': False, 'delete': False}"/>
                     <field name="billable_type" invisible="1"/>
                 </field>
             </field>
         </record>
 
+    <record id="project_task_view_form_inherit_sale_line_editable" model="ir.ui.view">
+        <field name="name">project.task.form.inherit.sale.line.editable.salesman</field>
+        <field name="model">project.task</field>
+        <field name="inherit_id" ref="view_sale_service_inherit_form2"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='sale_line_id']" position="attributes">
+                <attribute name="options">{"no_create": True}</attribute>
+                <attribute name="readonly">0</attribute>
+            </xpath>
+        </field>
+        <field name="groups_id" eval="[(4, ref('sales_team.group_sale_salesman'))]"/>
+    </record>
+
     <record id="project_task_view_form_sale_order" model="ir.ui.view">
         <field name="name">project.task.form.inherit.sale.order</field>
         <field name="model">project.task</field>