diff --git a/hotel_channel_connector/models/channel_backend/common.py b/hotel_channel_connector/models/channel_backend/common.py
index bad5d6132..2434e623d 100644
--- a/hotel_channel_connector/models/channel_backend/common.py
+++ b/hotel_channel_connector/models/channel_backend/common.py
@@ -244,7 +244,7 @@ class ChannelBackend(models.Model):
     @api.model
     def cron_push_changes(self):
         backends = self.env[self._name].search([])
-        backends.push_availability()
+        backends.with_context({'force_update': True}).push_availability()
         backends.push_restriction()
         backends.push_pricelist()
 
diff --git a/hotel_channel_connector_wubook/models/hotel_reservation/importer.py b/hotel_channel_connector_wubook/models/hotel_reservation/importer.py
index 6bc1975a2..cc6eb5173 100644
--- a/hotel_channel_connector_wubook/models/hotel_reservation/importer.py
+++ b/hotel_channel_connector_wubook/models/hotel_reservation/importer.py
@@ -350,15 +350,8 @@ class HotelReservationImporter(Component):
                 processed_rids.append(rcode)
                 continue
 
-            # Search Customer
-            customer_mail = book.get('customer_mail', False)
-            partner_id = False
-            if customer_mail:
-                partner_id = res_partner_obj.search([
-                    ('email', '=', customer_mail)
-                ], limit=1)
-            if not partner_id:
-                partner_id = res_partner_obj.create(self._generate_partner_vals(book))
+            # Create new Customer
+            partner_id = res_partner_obj.create(self._generate_partner_vals(book))
 
             reservations = []
             used_rooms = []
diff --git a/hotel_channel_connector_wubook/models/hotel_room_type_availability/exporter.py b/hotel_channel_connector_wubook/models/hotel_room_type_availability/exporter.py
index 220a8e44f..158176681 100644
--- a/hotel_channel_connector_wubook/models/hotel_room_type_availability/exporter.py
+++ b/hotel_channel_connector_wubook/models/hotel_room_type_availability/exporter.py
@@ -15,11 +15,13 @@ class HotelRoomTypeAvailabilityExporter(Component):
 
     def push_availability(self):
         channel_hotel_room_type_obj = self.env['channel.hotel.room.type']
-        channel_room_type_avail_ids = self.env['channel.hotel.room.type.availability'].search([
+        search_domain = [
             ('backend_id', '=', self.backend_record.id),
-            ('channel_pushed', '=', False),
             ('date', '>=', fields.Date.today())
-        ])
+        ]
+        if not self.env['channel.hotel.room.type.availability']._context.get('force_update', False):
+            search_domain.append(('channel_pushed', '=', False))
+        channel_room_type_avail_ids = self.env['channel.hotel.room.type.availability'].search(search_domain)
         room_types = channel_room_type_avail_ids.mapped('room_type_id')
         avails = []
         for room_type in room_types:
@@ -44,6 +46,17 @@ class HotelRoomTypeAvailabilityExporter(Component):
         _logger.info(avails)
         if any(avails):
             try:
+                # For functions updating room values (like availability, prices, restrictions and so on),
+                # for example update_avail(), there is a maximum number of updatable days (for __each room__)
+                # depending on the time window.
+                # Number of updated days    Time window (seconds)
+                # 1460                      1
+                # 4380                      180
+                # 13140                     3600
+                # 25550                     43200
+                # 29200                     86400
+                # 32850                     172800
+                # 36500                     259200
                 self.backend_adapter.update_availability(avails)
             except ChannelConnectorError as err:
                 self.create_issue(