diff --git a/ext/custom-addons/dp_custom/models/sale.py b/ext/custom-addons/dp_custom/models/sale.py
index a0734926..8532fd13 100644
--- a/ext/custom-addons/dp_custom/models/sale.py
+++ b/ext/custom-addons/dp_custom/models/sale.py
@@ -31,13 +31,13 @@ class SaleOrder(models.Model):
 
     ASSEMBLY_STATES = [('approved', 'Produktionsfreigabe'),
                        ('started', 'Produktion begonnen'),
-                       ('done', 'Produktions fertig'),
+                       ('done', 'Produktion fertig'),
                        ('packed', 'Verpackt'),
                        ('delivered', 'Geliefert')]
 
     assembled = fields.Boolean(string='Zusammengebaut')
     line_id = fields.Many2one(comodel_name='res.line', string='Produktionslinie')
-    assembly_state = fields.Selection(ASSEMBLY_STATES, string="Status PG")
+    assembly_state = fields.Selection(ASSEMBLY_STATES, string="Status PG", track_visibility='onchange')
     quote_name = fields.Char(compute='_compute_quote_name')
     internal_notes = fields.Text()
     assembly_notes = fields.Text()
@@ -199,6 +199,14 @@ class SaleOrder(models.Model):
         return ['origin', 'client_order_ref', 'note', 'date_order', 'assembled', 'line_id', 'partner_id',
                 'fiscal_position_id', 'user_id', 'payment_term_id', 'partner_delivery_id', 'partner_invoice_id']
 
+    @api.multi
+    def write(self, vals):
+        res = super(SaleOrder, self).write(vals)
+        if vals.get('assembly_state', False) and vals.get('assembly_state', False) == 'done':
+            self.message_post(body='Produktion fertig')
+
+        return res
+
 
 class SaleOrderLine(models.Model):
     _inherit = 'sale.order.line'