diff --git a/contract/models/abstract_contract_line.py b/contract/models/abstract_contract_line.py
index ca82a2d1..a338cb7d 100644
--- a/contract/models/abstract_contract_line.py
+++ b/contract/models/abstract_contract_line.py
@@ -116,17 +116,6 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
         oldname='analytic_account_id',
     )
 
-    @api.multi
-    def _get_invoiced_period(self, last_date_invoiced, recurring_next_date):
-        return self.date_start, last_date_invoiced, recurring_next_date
-
-    @api.multi
-    def _get_quantity_to_invoice(
-        self, period_first_date, period_last_date, invoice_date
-    ):
-        self.ensure_one()
-        return self.quantity
-
     @api.depends(
         'automatic_price',
         'specific_price',
@@ -141,13 +130,10 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
         """
         for line in self:
             if line.automatic_price:
-                dates = line._get_invoiced_period(
-                    line.last_date_invoiced, line.recurring_next_date
-                )
                 product = line.product_id.with_context(
                     quantity=line.env.context.get(
                         'contract_line_qty',
-                        line._get_quantity_to_invoice(*dates),
+                        line.quantity,
                     ),
                     pricelist=line.contract_id.pricelist_id.id,
                     partner=line.contract_id.partner_id.id,
@@ -170,10 +156,7 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
     @api.depends('quantity', 'price_unit', 'discount')
     def _compute_price_subtotal(self):
         for line in self:
-            dates = line._get_invoiced_period(
-                line.last_date_invoiced, line.recurring_next_date
-            )
-            subtotal = line._get_quantity_to_invoice(*dates) * line.price_unit
+            subtotal = line.quantity * line.price_unit
             discount = line.discount / 100
             subtotal *= 1 - discount
             if line.contract_id.pricelist_id:
@@ -210,13 +193,10 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
 
         date = self.recurring_next_date or fields.Date.context_today(self)
         partner = self.contract_id.partner_id or self.env.user.partner_id
-        dates = self._get_invoiced_period(
-            self.last_date_invoiced, self.recurring_next_date
-        )
         product = self.product_id.with_context(
             lang=partner.lang,
             partner=partner.id,
-            quantity=self._get_quantity_to_invoice(*dates),
+            quantity=self.quantity,
             date=date,
             pricelist=self.contract_id.pricelist_id.id,
             uom=self.uom_id.id,
diff --git a/contract/models/contract.py b/contract/models/contract.py
index 3d3a02f6..e08c4622 100644
--- a/contract/models/contract.py
+++ b/contract/models/contract.py
@@ -171,7 +171,7 @@ class AccountAnalyticAccount(models.Model):
         for field_name, field in contract_template_id._fields.items():
             if field.name == 'recurring_invoice_line_ids':
                 lines = self._convert_contract_lines(contract_template_id)
-                self.recurring_invoice_line_ids = lines
+                self.recurring_invoice_line_ids += lines
             elif not any(
                 (
                     field.compute,
@@ -183,6 +183,7 @@ class AccountAnalyticAccount(models.Model):
                 )
             ):
                 self[field_name] = self.contract_template_id[field_name]
+        self.recurring_invoice_line_ids._onchange_date_start()
 
     @api.onchange('partner_id')
     def _onchange_partner_id(self):
@@ -213,7 +214,8 @@ class AccountAnalyticAccount(models.Model):
     @api.multi
     def _convert_contract_lines(self, contract):
         self.ensure_one()
-        new_lines = []
+        new_lines = self.env['account.analytic.invoice.line']
+        contract_line_model = self.env['account.analytic.invoice.line']
         for contract_line in contract.recurring_invoice_line_ids:
             vals = contract_line._convert_to_write(contract_line.read()[0])
             # Remove template link field
@@ -222,8 +224,7 @@ class AccountAnalyticAccount(models.Model):
             vals['recurring_next_date'] = fields.Date.context_today(
                 contract_line
             )
-            self.recurring_invoice_line_ids._onchange_date_start()
-            new_lines.append((0, 0, vals))
+            new_lines += contract_line_model.new(vals)
         return new_lines
 
     @api.multi
diff --git a/contract/models/contract_line.py b/contract/models/contract_line.py
index 2d512788..29f9ed63 100644
--- a/contract/models/contract_line.py
+++ b/contract/models/contract_line.py
@@ -486,7 +486,7 @@ class AccountAnalyticInvoiceLine(models.Model):
     @api.multi
     def _prepare_invoice_line(self, invoice_id=False):
         self.ensure_one()
-        dates = self._get_invoiced_period(
+        dates = self._get_period_to_invoice(
             self.last_date_invoiced, self.recurring_next_date
         )
         invoice_line_vals = {
@@ -515,7 +515,9 @@ class AccountAnalyticInvoiceLine(models.Model):
         return invoice_line_vals
 
     @api.multi
-    def _get_invoiced_period(self, last_date_invoiced, recurring_next_date):
+    def _get_period_to_invoice(
+        self, last_date_invoiced, recurring_next_date, stop_at_date_end=True
+    ):
         self.ensure_one()
         first_date_invoiced = False
         if not recurring_next_date:
@@ -540,8 +542,9 @@ class AccountAnalyticInvoiceLine(models.Model):
                 last_date_invoiced = recurring_next_date - relativedelta(
                     days=1
                 )
-        if self.date_end and self.date_end < last_date_invoiced:
-            last_date_invoiced = self.date_end
+        if stop_at_date_end:
+            if self.date_end and self.date_end < last_date_invoiced:
+                last_date_invoiced = self.date_end
         return first_date_invoiced, last_date_invoiced, recurring_next_date
 
     @api.multi
@@ -1078,3 +1081,10 @@ class AccountAnalyticInvoiceLine(models.Model):
                 _("Contract line must be canceled before delete")
             )
         return super(AccountAnalyticInvoiceLine, self).unlink()
+
+    @api.multi
+    def _get_quantity_to_invoice(
+        self, period_first_date, period_last_date, invoice_date
+    ):
+        self.ensure_one()
+        return self.quantity
diff --git a/contract/tests/test_contract.py b/contract/tests/test_contract.py
index cf2bc803..4a7c1613 100644
--- a/contract/tests/test_contract.py
+++ b/contract/tests/test_contract.py
@@ -1324,27 +1324,27 @@ class TestContract(TestContractBase):
             len(invoice_lines),
         )
 
-    def test_get_invoiced_period_monthlylastday(self):
+    def test_get_period_to_invoice_monthlylastday(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.acct_line.recurring_rule_type = 'monthlylastday'
         self.acct_line.date_end = '2018-03-15'
         self.acct_line._onchange_date_start()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-01-05'))
         self.assertEqual(last, to_date('2018-01-31'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-01'))
         self.assertEqual(last, to_date('2018-02-28'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
@@ -1352,150 +1352,150 @@ class TestContract(TestContractBase):
         self.assertEqual(last, to_date('2018-03-15'))
         self.acct_line.manual_renew_needed = True
 
-    def test_get_invoiced_period_monthly_pre_paid_2(self):
+    def test_get_period_to_invoice_monthly_pre_paid_2(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'pre-paid'
         self.acct_line.recurring_rule_type = 'monthly'
         self.acct_line.date_end = '2018-08-15'
         self.acct_line._onchange_date_start()
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-03-04'))
         self.acct_line.recurring_next_date = '2018-06-05'
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-07-04'))
 
-    def test_get_invoiced_period_monthly_post_paid_2(self):
+    def test_get_period_to_invoice_monthly_post_paid_2(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.acct_line.recurring_rule_type = 'monthly'
         self.acct_line.date_end = '2018-08-15'
         self.acct_line._onchange_date_start()
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-03-04'))
         self.acct_line.recurring_next_date = '2018-06-05'
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-06-04'))
 
-    def test_get_invoiced_period_monthly_post_paid(self):
+    def test_get_period_to_invoice_monthly_post_paid(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.acct_line.recurring_rule_type = 'monthly'
         self.acct_line.date_end = '2018-03-15'
         self.acct_line._onchange_date_start()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-01-05'))
         self.assertEqual(last, to_date('2018-02-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-03-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-03-05'))
         self.assertEqual(last, to_date('2018-03-15'))
 
-    def test_get_invoiced_period_monthly_pre_paid(self):
+    def test_get_period_to_invoice_monthly_pre_paid(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'pre-paid'
         self.acct_line.recurring_rule_type = 'monthly'
         self.acct_line.date_end = '2018-03-15'
         self.acct_line._onchange_date_start()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-01-05'))
         self.assertEqual(last, to_date('2018-02-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-02-05'))
         self.assertEqual(last, to_date('2018-03-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-03-05'))
         self.assertEqual(last, to_date('2018-03-15'))
 
-    def test_get_invoiced_period_yearly_post_paid(self):
+    def test_get_period_to_invoice_yearly_post_paid(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.acct_line.recurring_rule_type = 'yearly'
         self.acct_line.date_end = '2020-03-15'
         self.acct_line._onchange_date_start()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-01-05'))
         self.assertEqual(last, to_date('2019-01-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2019-01-05'))
         self.assertEqual(last, to_date('2020-01-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2020-01-05'))
         self.assertEqual(last, to_date('2020-03-15'))
 
-    def test_get_invoiced_period_yearly_pre_paid(self):
+    def test_get_period_to_invoice_yearly_pre_paid(self):
         self.acct_line.date_start = '2018-01-05'
         self.acct_line.recurring_invoicing_type = 'pre-paid'
         self.acct_line.recurring_rule_type = 'yearly'
         self.acct_line.date_end = '2020-03-15'
         self.acct_line._onchange_date_start()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2018-01-05'))
         self.assertEqual(last, to_date('2019-01-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
         self.assertEqual(first, to_date('2019-01-05'))
         self.assertEqual(last, to_date('2020-01-04'))
         self.contract.recurring_create_invoice()
-        first, last, recurring_next_date = self.acct_line._get_invoiced_period(
+        first, last, recurring_next_date = self.acct_line._get_period_to_invoice(
             self.acct_line.last_date_invoiced,
             self.acct_line.recurring_next_date,
         )
diff --git a/contract/views/contract.xml b/contract/views/contract.xml
index 7f0ec06b..b7b74e5e 100644
--- a/contract/views/contract.xml
+++ b/contract/views/contract.xml
@@ -184,11 +184,6 @@
         <field name="inherit_id"
                ref="analytic.view_account_analytic_account_search"/>
         <field name="arch" type="xml">
-            <field name="partner_id" position="after">
-                <field name="partner_id"
-                       filter_domain="[('partner_id', 'child_of', self)]"
-                       string="Partner and dependents"/>
-            </field>
             <field name="name" position="after">
                 <field name="journal_id"/>
                 <field name="pricelist_id"/>