diff --git a/__manifest__.py b/__manifest__.py
index 42fe4fde0cf5c1416d74e9ec3c73544e4e0d4a21..2dc5e4a2a1eee070489c02b372b4b678916401a6 100644
--- a/__manifest__.py
+++ b/__manifest__.py
@@ -16,7 +16,7 @@
         "security/ir.model.access.csv",
         "views/scop_invoice_idf.xml",
         "views/scop_invoice_idf_logs.xml",
-        "views/scop_cotisations_idf.xml",
+        "views/scop_cotisation_idf.xml",
         "views/res_config_settings.xml",
         "templates/scop_invoice_idf_header_template.xml",
         "wizard/scop_invoice_idf_wizard.xml",
diff --git a/controllers/banner_scop_invoice_idf.py b/controllers/banner_scop_invoice_idf.py
index 560f87ecd15bc19c322aa955363f23981c5189de..04ac9290fb0adaff1e5e91f41daa14aca494657f 100644
--- a/controllers/banner_scop_invoice_idf.py
+++ b/controllers/banner_scop_invoice_idf.py
@@ -14,8 +14,8 @@ class BannerScopInvoiceIDFController(http.Controller):
                 'cgscop_invoice_idf.header_template').render({})
         }
 
-    @http.route(['/cgscop_cotisations_idf/header'], type="json", auth="user")
-    def scop_cotisations_idf_header(self):
+    @http.route(['/cgscop_cotisation_idf/header'], type="json", auth="user")
+    def scop_cotisation_idf_header(self):
         return {
             'html': request.env.ref(
                 'cgscop_invoice_idf.header_template_cotisations').render({})
diff --git a/models/__init__.py b/models/__init__.py
index 2409b9d1c9b2892866df8b8f00ae823058008973..3a947e5cdfdd56f127f16bfeb0c48bab277b8de2 100644
--- a/models/__init__.py
+++ b/models/__init__.py
@@ -4,5 +4,5 @@
 from . import res_company
 from . import res_config_settings
 from . import scop_invoice_idf
-from . import scop_cotisations_idf
+from . import scop_cotisation_idf
 from . import scop_invoice_idf_logs
diff --git a/models/scop_cotisations_idf.py b/models/scop_cotisation_idf.py
similarity index 92%
rename from models/scop_cotisations_idf.py
rename to models/scop_cotisation_idf.py
index 5c6a0d2adec3293c5b2759bc001d9bd7ab78a973..09f61798b427cb8e0d5986847446a830cc39bd80 100644
--- a/models/scop_cotisations_idf.py
+++ b/models/scop_cotisation_idf.py
@@ -5,7 +5,7 @@ from odoo import models, fields, api
 
 
 class ScopCotisationsIDF(models.Model):
-    _name = "scop.cotisations.idf"
+    _name = "scop.cotisation.idf"
     _description = "Cotisations IDF"
 
     # ------------------------------------------------------
@@ -54,10 +54,10 @@ class ScopCotisationsIDF(models.Model):
         compute='_compute_state')
 
     invoice_id = fields.Many2one(
-        comodel_name='scop.cotisations.idf',
+        comodel_name='scop.cotisation.idf',
         string='Cotisation')
     payments_ids = fields.One2many(
-        comodel_name='scop.cotisations.idf',
+        comodel_name='scop.cotisation.idf',
         inverse_name='invoice_id',
         string='Paiments / Avoirs',
         required=False, readonly=True)
@@ -140,7 +140,7 @@ class ScopCotisationsIDF(models.Model):
     # ------------------------------------------------------
     # Actions
     # ------------------------------------------------------
-    def look_for_lettrage(self):
+    def reconcile(self):
         """
         Link payments and invoices if same letter for a given year
         :return:
@@ -169,11 +169,11 @@ class ScopCotisationsIDF(models.Model):
             'name': 'Paiement / Avoir',
             'views': [
                 [self.env.ref(
-                    'cgscop_invoice_idf.view_scop_cotisations_idf_form').id,
+                    'cgscop_invoice_idf.view_scop_cotisation_idf_form').id,
                  "form"]
             ],
             'view_mode': 'form',
-            'res_model': 'scop.cotisations.idf',
+            'res_model': 'scop.cotisation.idf',
             'target': 'current',
             'res_id': self.id
         }
@@ -183,9 +183,9 @@ class ScopCotisationsIDF(models.Model):
 
     def action_show_payments(self):
         form_view = self.env.ref(
-                    'cgscop_invoice_idf.view_scop_cotisations_idf_form').id
+                    'cgscop_invoice_idf.view_scop_cotisation_idf_form').id
         tree_view = self.env.ref(
-            'cgscop_invoice_idf.view_scop_cotisations_idf_tree').id
+            'cgscop_invoice_idf.view_scop_cotisation_idf_tree').id
         return {
             'type': 'ir.actions.act_window',
             'name': 'Paiement / Avoir',
@@ -193,14 +193,14 @@ class ScopCotisationsIDF(models.Model):
                 [tree_view, "tree"], [form_view, "form"]
             ],
             'view_mode': 'form',
-            'res_model': 'scop.cotisations.idf',
+            'res_model': 'scop.cotisation.idf',
             'target': 'current',
             'domain': [('id', 'in', self.payments_ids.ids)]
         }
 
     def action_show_invoice(self):
         form_view = self.env.ref(
-                    'cgscop_invoice_idf.view_scop_cotisations_idf_form').id
+                    'cgscop_invoice_idf.view_scop_cotisation_idf_form').id
         return {
             'type': 'ir.actions.act_window',
             'name': 'Cotisation',
@@ -208,7 +208,7 @@ class ScopCotisationsIDF(models.Model):
                 [form_view, "form"]
             ],
             'view_mode': 'form',
-            'res_model': 'scop.cotisations.idf',
+            'res_model': 'scop.cotisation.idf',
             'target': 'current',
             'res_id': self.invoice_id.id
         }
diff --git a/models/scop_invoice_idf.py b/models/scop_invoice_idf.py
index ac2aa5abe51ad3aef7008504fe44438456ff3e5f..2433504a59e5539cb183ae13436aee88fe6054d9 100644
--- a/models/scop_invoice_idf.py
+++ b/models/scop_invoice_idf.py
@@ -123,7 +123,7 @@ class ScopInvoiceIDF(models.Model):
     # ------------------------------------------------------
     # Actions
     # ------------------------------------------------------
-    def look_for_lettrage(self):
+    def reconcile(self):
         """
         Link payments and invoices if same letter for a given year
         :return:
diff --git a/security/ir.model.access.csv b/security/ir.model.access.csv
index 36466709d99673c0b455b72acb4d04c17863519d..be6f5c5cc7f273524234529cfbb65d38f629ce6b 100644
--- a/security/ir.model.access.csv
+++ b/security/ir.model.access.csv
@@ -1,4 +1,4 @@
 id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
 access_scop_invoice_idf,access_scop_invoice_idf,model_scop_invoice_idf,base.group_user,1,1,1,1
-access_scop_cotisations_idf,access_scop_cotisations_idf,model_scop_cotisations_idf,base.group_user,1,1,1,1
+access_scop_cotisation_idf,access_scop_cotisation_idf,model_scop_cotisation_idf,base.group_user,1,1,1,1
 access_scop_invoice_idf_logs,access_scop_invoice_idf_logs,model_scop_invoice_idf_logs,base.group_user,1,1,1,1
diff --git a/templates/scop_invoice_idf_header_template.xml b/templates/scop_invoice_idf_header_template.xml
index 297d8bc8bf5f40b5699675a0645cb530981858b8..54427bcaa6291de20285411f9edf7781e10b7b7a 100644
--- a/templates/scop_invoice_idf_header_template.xml
+++ b/templates/scop_invoice_idf_header_template.xml
@@ -22,14 +22,14 @@
         </div>
     </template>
 
-    <template id="header_template_cotisations" name="cgscop_cotisations_idf.header_template">
+    <template id="header_template_cotisations" name="cgscop_cotisation_idf.header_template">
         <div id="lm" style="background-color: #fff; padding: 16px 0">
             <div class="container">
                 <div class="row">
                     <div class="col-12">
                         <span style="font-size: 1.4rem; margin-right: 32px;"><strong>Importer : </strong></span>
                         <a type="action"
-                           data-method="scop_cotisations_idf_wizard_action"
+                           data-method="scop_cotisation_idf_wizard_action"
                            data-model="scop.invoice.idf.wizard"
                            class="btn btn-secondary" style="margin-right: 32px;">
                             <u>Cotisations</u>
diff --git a/views/scop_cotisations_idf.xml b/views/scop_cotisation_idf.xml
similarity index 84%
rename from views/scop_cotisations_idf.xml
rename to views/scop_cotisation_idf.xml
index 75605fe40a17c1a9ebccef48ce01a010b6c850a8..0ee62ff3b8f88c07a8633206227ad2e9fc600e12 100644
--- a/views/scop_cotisations_idf.xml
+++ b/views/scop_cotisation_idf.xml
@@ -3,25 +3,25 @@
     <data>
 
         <!-- Ajoute l'action "Lettrage" dans le menu du modèle -->
-        <record id="action_server_scop_cotisations_idf" model="ir.actions.server">
+        <record id="action_server_scop_cotisation_idf" model="ir.actions.server">
             <field name="name">Lettrage</field>
             <field name="type">ir.actions.server</field>
-            <field name="model_id" ref="model_scop_cotisations_idf"/>
-            <field name="binding_model_id" ref="model_scop_cotisations_idf"/>
+            <field name="model_id" ref="model_scop_cotisation_idf"/>
+            <field name="binding_model_id" ref="model_scop_cotisation_idf"/>
             <field name="state">code</field>
             <field name="code">
                 if records:
-                    action = records.look_for_lettrage()
+                    action = records.reconcile()
             </field>
         </record>
 
         <!-- TREE VIEW -->
-        <record model="ir.ui.view" id="view_scop_cotisations_idf_tree">
-            <field name="name">scop.cotisations.idf.tree</field>
-            <field name="model">scop.cotisations.idf</field>
+        <record model="ir.ui.view" id="view_scop_cotisation_idf_tree">
+            <field name="name">scop.cotisation.idf.tree</field>
+            <field name="model">scop.cotisation.idf</field>
             <field name="arch" type="xml">
                 <tree string="Cotisations IDF"
-                      banner_route="/cgscop_cotisations_idf/header"
+                      banner_route="/cgscop_cotisation_idf/header"
                       decoration-danger="state in ['no_invoice', 'overpaid']"
                       decoration-info="state == 'awaiting_payments'"
                       import='False' default_order='writing_date desc'>
@@ -45,17 +45,17 @@
         </record>
 
         <!-- FORM -->
-        <record id="view_scop_cotisations_idf_form" model="ir.ui.view">
-            <field name="name">scop.cotisations.idf.form</field>
-            <field name="model">scop.cotisations.idf</field>
+        <record id="view_scop_cotisation_idf_form" model="ir.ui.view">
+            <field name="name">scop.cotisation.idf.form</field>
+            <field name="model">scop.cotisation.idf</field>
             <field name="arch" type="xml">
                 <form string="Cotisations IDF">
                     <sheet>
                         <div class="oe_button_box" name="button_box">
                             <button name="action_show_payments" type="object" class="oe_stat_button" icon="fa-eur"
-                                    attrs="{'invisible': [('type', '!=', 'inv')]}">Paiments</button>
+                                    attrs="{'invisible': ['|', ('type', '!=', 'inv'), ('payments_ids', '=', False)]}">Paiments</button>
                             <button name="action_show_invoice" type="object" class="oe_stat_button" icon="fa-calculator"
-                                    attrs="{'invisible': [('type', '=', 'inv')]}">Cotisation</button>
+                                    attrs="{'invisible': ['|', ('type', '=', 'inv'), ('invoice_id', '=', False)]}">Cotisation</button>
                         </div>
                         <div class="oe_title">
                             <h1>
@@ -122,9 +122,9 @@
         </record>
 
         <!-- GRAPH -->
-        <record id="view_scop_cotisations_idf_graph" model="ir.ui.view">
-            <field name="name">scop.cotisations.idf.graph</field>
-            <field name="model">scop.cotisations.idf</field>
+        <record id="view_scop_cotisation_idf_graph" model="ir.ui.view">
+            <field name="name">scop.cotisation.idf.graph</field>
+            <field name="model">scop.cotisation.idf</field>
             <field name="arch" type="xml">
                 <graph string="Cotisations IDF">
                     <field name="year" type="row"/>
@@ -134,9 +134,9 @@
         </record>
 
         <!-- PIVOT -->
-        <record id="view_scop_cotisations_idf_pivot" model="ir.ui.view">
-            <field name="name">scop.cotisations.idf.pivot</field>
-            <field name="model">scop.cotisations.idf</field>
+        <record id="view_scop_cotisation_idf_pivot" model="ir.ui.view">
+            <field name="name">scop.cotisation.idf.pivot</field>
+            <field name="model">scop.cotisation.idf</field>
             <field name="arch" type="xml">
                 <pivot string="Cotisations IDF" display_quantity="True">
                     <field name="partner_id" type="row"/>
@@ -147,9 +147,9 @@
         </record>
 
         <!-- SEARCH -->
-        <record id="view_scop_cotisations_idf_search" model="ir.ui.view">
-            <field name="name">scop.cotisations.idf.search</field>
-            <field name="model">scop.cotisations.idf</field>
+        <record id="view_scop_cotisation_idf_search" model="ir.ui.view">
+            <field name="name">scop.cotisation.idf.search</field>
+            <field name="model">scop.cotisation.idf</field>
             <field name="arch" type="xml">
                 <search string="Paiements IDF">
                     <field name="partner_id"/>
@@ -175,9 +175,9 @@
         </record>
 
         <!-- ACTION -->
-        <record id="action_scop_cotisations_idf" model="ir.actions.act_window">
+        <record id="action_scop_cotisation_idf" model="ir.actions.act_window">
             <field name="name">Cotisations IDF</field>
-            <field name="res_model">scop.cotisations.idf</field>
+            <field name="res_model">scop.cotisation.idf</field>
             <field name="view_mode">tree,form,pivot,graph</field>
         </record>
 
@@ -186,7 +186,7 @@
                   name="Cotisations"
                   parent="menu_scop_invoice_idf"
                   sequence="20"
-                  action="action_scop_cotisations_idf"/>
+                  action="action_scop_cotisation_idf"/>
 
     </data>
 </odoo>
diff --git a/views/scop_invoice_idf.xml b/views/scop_invoice_idf.xml
index 6873d4668272811793930aee0f9058339ecec1c8..5d626a84098f01951f47b5b44c0dafc1b5d002b7 100644
--- a/views/scop_invoice_idf.xml
+++ b/views/scop_invoice_idf.xml
@@ -11,7 +11,7 @@
             <field name="state">code</field>
             <field name="code">
                 if records:
-                    action = records.look_for_lettrage()
+                    action = records.reconcile()
             </field>
         </record>
 
@@ -51,9 +51,9 @@
                     <sheet>
                         <div class="oe_button_box" name="button_box">
                             <button name="action_show_payments" type="object" class="oe_stat_button" icon="fa-eur"
-                                    attrs="{'invisible': [('type', '!=', 'inv')]}">Paiments</button>
+                                    attrs="{'invisible': ['|', ('type', '!=', 'inv'), ('payments_ids', '=', False)]}">Paiments</button>
                             <button name="action_show_invoice" type="object" class="oe_stat_button" icon="fa-calculator"
-                                    attrs="{'invisible': [('type', '=', 'inv')]}">Facture</button>
+                                    attrs="{'invisible': ['|', ('type', '=', 'inv'), ('invoice_id', '=', False)]}">Facture</button>
                         </div>
                         <div class="oe_title">
                             <h1>
diff --git a/wizard/scop_invoice_idf_wizard.py b/wizard/scop_invoice_idf_wizard.py
index 4428605f3f804497a1f65454611cb4b689d313a0..de7ac630de919bf3c8375adc8e2ef0cdb936b00a 100644
--- a/wizard/scop_invoice_idf_wizard.py
+++ b/wizard/scop_invoice_idf_wizard.py
@@ -48,7 +48,7 @@ class ScopImportIDFWizard(models.TransientModel):
         }
 
     @api.model
-    def scop_cotisations_idf_wizard_action(self):
+    def scop_cotisation_idf_wizard_action(self):
         return {
             'type': 'ir.actions.act_window',
             'name': 'Import Cotisations',
@@ -93,7 +93,7 @@ class ScopImportIDFWizard(models.TransientModel):
         if self.type == 'inv':
             model = 'scop.invoice.idf'
         else:
-            model = 'scop.cotisations.idf'
+            model = 'scop.cotisation.idf'
 
         for row in reader:
             line += 1
@@ -170,7 +170,7 @@ class ScopImportIDFWizard(models.TransientModel):
         # Lettrage for all line in updated years
         recordset_for_lettrage = self.env[model].search([
             ['year', 'in', list(new_lines_years)]])
-        recordset_for_lettrage.look_for_lettrage()
+        recordset_for_lettrage.reconcile()
         return {
             'type': 'ir.actions.act_window',
             'views': [[False, "form"]],