diff --git a/models/pos_transaction.py b/models/pos_transaction.py
index 3c99eab..34f86c1 100644
--- a/models/pos_transaction.py
+++ b/models/pos_transaction.py
@@ -14,7 +14,7 @@ class PosTransaction(models.Model):
     _description = 'Table des Transactions'
 
     name = fields.Char('Ref Produit')
-    balance_id = fields.Char('Id de la balance')
+    balance_id = fields.Char('Id de la balance/caisse')
     qrcode = fields.Char("QRCode")
     ean13 = fields.Char('EAN13 Poids  Produits', size=13)
     ean13_verif = fields.Char('EAN13 Vérification Poids', size=13)
diff --git a/static/src/js/container.js b/static/src/js/container.js
index b3ec9a9..afc8b16 100644
--- a/static/src/js/container.js
+++ b/static/src/js/container.js
@@ -30,7 +30,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
 
         show: function(){
             var self = this;
-            if (this.pos.config.balance_id) {
+            if (this.pos.config.is_balance_free) {
                 var queue = this.pos.proxy_queue;
 
                 var container = this.gui.get_current_screen_param('container');
@@ -398,7 +398,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         'name':'balancescale',
         'widget': BalanceScaleScreenWidget,
         'condition': function(){
-            return this.pos.config.balance_id;
+            return this.pos.config.is_balance_free;
         },
     });
 
@@ -642,7 +642,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         'name':'products-balance',
         'widget': ProductBalanceScreenWidget,
         'condition': function(){
-            return this.pos.config.balance_id;
+            return this.pos.config.is_balance_free;
         },
     });
 
@@ -765,7 +765,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         'name':'balancecontainerscale',
         'widget': BalanceContainerScaleScreenWidget,
         'condition': function(){
-            return this.pos.config.balance_id;
+            return this.pos.config.is_balance_free;
         },
     });
 
@@ -820,7 +820,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         'name': 'presentation',
         'widget': PresentationScreenWidget,
         'condition': function(){
-            return this.pos.config.balance_id;
+            return this.pos.config.is_balance_free;
         },
     });
 
@@ -928,7 +928,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         'name': 'confirmation',
         'widget': ConfirmationScreen,
         'condition': function(){
-            return this.pos.config.balance_id;
+            return this.pos.config.is_balance_free;
         },
     });
 
@@ -936,14 +936,14 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
     chrome.Chrome.include({
         build_widgets: function(){
             this._super();
-            if (this.pos.config.balance_id) {
+            if (this.pos.config.is_balance_free) {
                 this.gui.set_startup_screen('presentation');
             }
         },
 
         build_chrome: function() {
             this._super();
-            if (this.pos.config.balance_id) {
+            if (this.pos.config.is_balance_free) {
                 this.$('.pos-topheader').addClass('oe_hidden');
             }
             else {
@@ -974,7 +974,7 @@ odoo.define('vracoop_pos_free_balance_v2.container_balance', function (require)
         renderElement: function(){
             var self = this;
             this._super();
-            if (this.pos.config.balance_id) {
+            if (this.pos.config.is_balance_free) {
                 if (this.pos.get_order()) {
                     this.$el.removeClass('oe_invisible');
                 } else {
diff --git a/static/src/js/models_and_db.js b/static/src/js/models_and_db.js
index ac2a35a..d8bc93c 100644
--- a/static/src/js/models_and_db.js
+++ b/static/src/js/models_and_db.js
@@ -145,13 +145,20 @@ odoo.define('vracoop_pos_free_balance_v2.models_and_db_balance', function (requi
             }
         },
 
-        // returns the header text from config
+        // returns the id of balance/caisse from config
         get_balance_id: function(){
             if (this.config.balance_id) {
                 return this.config.balance_id;
             }
         },
 
+        // returns if the pos is balance from config
+        get_is_balance_free: function(){
+            if (this.config.is_balance_free) {
+                return this.config.is_balance_free;
+            }
+        },
+
         get_is_comptoir: function(){
             if (this.config.is_comptoir) {
                 return this.config.is_comptoir;
@@ -264,6 +271,36 @@ odoo.define('vracoop_pos_free_balance_v2.models_and_db_balance', function (requi
 
     });
 
+    // Add container to order line
+    models.Orderline = models.Orderline.extend({
+
+        export_as_JSON: function(){
+            var pack_lot_ids = [];
+            if (this.has_product_lot){
+                this.pack_lot_lines.each(_.bind( function(item) {
+                    return pack_lot_ids.push([0, 0, item.export_as_JSON()]);
+                }, this));
+            }
+            return {
+                qty: this.get_quantity(),
+                price_unit: this.get_unit_price(),
+                price_subtotal: this.get_price_without_tax(),
+                price_subtotal_incl: this.get_price_with_tax(),
+                discount: this.get_discount(),
+                product_id: this.get_product().id,
+                tax_ids: [[6, false, _.map(this.get_applicable_taxes(), function(tax){ return tax.id; })]],
+                id: this.id,
+                pack_lot_ids: pack_lot_ids,
+                //custom starts here
+                tare: this.get_tare(),
+                container_id: this.get_container() ? this.get_container().id : null,
+                container_barcode: this.get_container() ? this.get_container().barcode : null,
+                container_weight: this.get_container() ? this.get_container().weight : null,
+                caisse_id: this.pos.config.balance_id,
+            };
+        },
+    }),
+
     models.load_models({
         model: 'pos.transaction',
         fields: ['product_id', 'name', 'balance_id', 'ean13', 'write_date', 'container_ean13', 'weight_net', 'price_product', 'price_net', 'weight_tare'],
diff --git a/views/pos_config_views.xml b/views/pos_config_views.xml
index b3d9221..5562adc 100644
--- a/views/pos_config_views.xml
+++ b/views/pos_config_views.xml
@@ -8,6 +8,22 @@
         <field name="arch" type="xml">
             <div id="posbox_reference" position="inside">
 
+                <div id="caisse" class="col-12 col-lg-6 o_setting_box">
+                    <div class="o_setting_left_pane">
+                    </div>
+                    <div class="o_setting_right_pane">
+                        <span class="o_form_label">Caisse ID</span>
+                        <div class="text-muted">
+                            Définition de l'ID Caisse pour l'API
+                        </div>
+                        <div class="content-group" attrs="{'invisible': [('is_balance_free', '!=', False)]}">
+                            <div class="row mt16">
+                                <label for="balance_id" class="col-lg-3 o_light_label"/>
+                                <field name="balance_id"/>
+                            </div>
+                        </div>
+                    </div>
+                </div>
                 <div id="balance_free" class="col-12 col-lg-6 o_setting_box">
                     <div class="o_setting_left_pane">
                         <field name="is_balance_free"/>