diff --git a/pos_backend_partner/README.rst b/pos_backend_partner/README.rst
index a10fdd49..b23155de 100644
--- a/pos_backend_partner/README.rst
+++ b/pos_backend_partner/README.rst
@@ -12,6 +12,13 @@ Choose a POS customer from the backend.
 - Benefit from the backend features: advanced search, easy to extend views, etc.
 
 
+Warning about offline mode
+--------------------------
+
+Due to design of this module, you can't choose a _named customer_ while offline but you
+can still register orders with _anonymous_ user.
+
+
 Configuration
 =============
 
diff --git a/pos_backend_partner/static/src/js/pos_partner.js b/pos_backend_partner/static/src/js/pos_partner.js
index b7e063d8..ee4ba772 100644
--- a/pos_backend_partner/static/src/js/pos_partner.js
+++ b/pos_backend_partner/static/src/js/pos_partner.js
@@ -33,24 +33,35 @@ odoo.define('pos_backend_partner.partner_pos', function (require) {
         });
     }
 
+    // Bind customer button in main screen
     ProductScreenWidget.ActionpadWidget.include({
-      init: function(parent, options) {
-        this._super(parent, options);
-        pos_instance = this.pos;
-
-      },
-      renderElement: function() {
+        init: function(parent, options) {
+            this._super(parent, options);
+            pos_instance = this.pos;
+        },
+        renderElement: function() {
           var self = this;
           this._super();
           this.$('.set-customer').unbind('click');
           this.$('.set-customer').click(function(){
               open_backend();
           });
-      }
+        }
+    });
+
+    // Bind customer button in payement screen
+    ProductScreenWidget.PaymentScreenWidget.include({
+        init: function(parent, options) {
+            this._super(parent, options);
+            pos_instance = this.pos;
+        },
+        click_set_customer: function() {
+            open_backend();
+        }
     });
-  
+
     tools.callbacks['partner.partner_selected'] = set_client;
- 
+
     return {
         callbacks: tools.callbacks
     };