diff --git a/odoo_whatsapp_hub/models/whatsapp_conversation.py b/odoo_whatsapp_hub/models/whatsapp_conversation.py
index 093058d..5315b23 100644
--- a/odoo_whatsapp_hub/models/whatsapp_conversation.py
+++ b/odoo_whatsapp_hub/models/whatsapp_conversation.py
@@ -38,6 +38,7 @@ class WhatsAppConversation(models.Model):
     last_message_preview = fields.Char(
         string='Último Mensaje',
         compute='_compute_last_message',
+        store=True,
     )
     message_ids = fields.One2many(
         'whatsapp.message',
@@ -56,6 +57,7 @@ class WhatsAppConversation(models.Model):
     unread_count = fields.Integer(
         string='No Leídos',
         compute='_compute_unread_count',
+        store=True,
     )
 
     @api.depends('partner_id', 'contact_name', 'phone_number')