diff --git a/delivery_stamps/i18n/es.po b/delivery_stamps/i18n/es.po
new file mode 100644
index 00000000..d7b4036a
--- /dev/null
+++ b/delivery_stamps/i18n/es.po
@@ -0,0 +1,241 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* delivery_stamps
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 15.0+e\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-10-12 01:20+0000\n"
+"PO-Revision-Date: 2021-10-12 01:20+0000\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_service_type__us-emi
+msgid " Priority Mail Express International"
+msgstr "Servicio Postal Prioritario Express Internacional"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__azpl
+msgid "AZPL"
+msgstr "AZPL"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_addon_dc
+msgid "Add Delivery Confirmation"
+msgstr "Agregar Confirmación de Entrega"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_addon_hp
+msgid "Add Hidden Postage"
+msgstr "Agregar Franqueo Oculto"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_addon_sc
+msgid "Add Signature Confirmation"
+msgstr "Agregar Firma de Confirmación"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__auto
+msgid "Auto"
+msgstr "Automático"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__bzpl
+msgid "BZPL"
+msgstr "BZPL"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Cancelling due to error: "
+msgstr "Cancelando debido a un error"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Cannot use customs without packing items to ship first."
+msgstr "No se puede usar el servicio de aduana sin empacar los artículos para enviar primero."
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_stock_package_type__package_carrier_type
+msgid "Carrier"
+msgstr "Transportista"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_default_packaging_id
+msgid "Default Package Type"
+msgstr "Tipo de Paquete Predeterminado"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__epl
+msgid "EPL"
+msgstr "EPL"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__encryptedpngurl
+msgid "Encrypted PNG URL"
+msgstr "URL de PNG Encriptado"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Error Retrieving Response from Stamps.com"
+msgstr "Error al recuperar una respuesta de Stamps.com"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Error on full shipment.  Attempted to cancel any previously shipped."
+msgstr "Error en el envío completo. Se intentó cancelar cualquier envío que se había enviado anteriormente"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Error on shipment. \"%s\""
+msgstr "Error en el envío. \"%s\""
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_service_type__us-fc
+msgid "First-Class"
+msgstr "Primera-Clase"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_service_type__us-fci
+msgid "First-Class International"
+msgstr "Primera Clase Internacional"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__gif
+msgid "GIF"
+msgstr "GIF"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_image_type
+msgid "Image Type"
+msgstr "Tipo de Imagen"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__jpg
+msgid "JPG"
+msgstr "JPG"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "No valid rates returned from Stamps.com"
+msgstr "No se devolvieron tarifas válidas de Stamps.com"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__pdf
+msgid "PDF"
+msgstr "PDF"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__png
+msgid "PNG"
+msgstr "PNG"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Partner (%s) name must be more than 2 characters."
+msgstr "El nombre del Socio (%s) debe tener más de dos caracteres"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__printoncepdf
+msgid "Print Once PDF"
+msgstr "Imprimir PDF Una Vez"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_service_type__us-pm
+msgid "Priority"
+msgstr "Prioridad"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_service_type__us-pmi
+msgid "Priority Mail International"
+msgstr "Servicio Postal Prioritaria Internacional"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__delivery_type
+msgid "Provider"
+msgstr "Proveedor"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_service_type
+msgid "Service Type"
+msgstr "Tipo de Servicio"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Shipment N° %s has been cancelled"
+msgstr "Número de Envío %s ha sido cancelado"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid ""
+"Shipment created into Stamps.com <br/> <b>Tracking Number : <br/> \"%s\" "
+"</b>"
+msgstr "El envío ha sido creado en Stamps.com <br/> <b> Número de Seguimiento : <br/> \"%s\" </b>"
+
+#. module: delivery_stamps
+#: model:ir.model,name:delivery_stamps.model_delivery_carrier
+msgid "Shipping Methods"
+msgstr "Métodos de Envío"
+
+#. module: delivery_stamps
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#: code:addons/delivery_stamps/models/delivery_stamps.py:0
+#, python-format
+msgid "Stamps needs ZIP. From: \"%s\" To: \"%s\""
+msgstr "Stamps requiere un Código Postal. Desde: %s Hasta: %s"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__stock_package_type__package_carrier_type__stamps
+msgid "Stamps.com"
+msgstr "Stamps.com"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__delivery_type__stamps
+msgid "Stamps.com (USPS)"
+msgstr "Stamps.com (USPS)"
+
+#. module: delivery_stamps
+#: model_terms:ir.ui.view,arch_db:delivery_stamps.view_delivery_carrier_form_with_provider_stamps
+msgid "Stamps.com Configuration"
+msgstr "Stamps.com Configuración"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_password
+msgid "Stamps.com Password"
+msgstr "Stamps.com Clave"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_stock_package_type__stamps_cubic_pricing
+msgid "Stamps.com Use Cubic Pricing"
+msgstr "Stamps.com Utilice el Precio Cúbicos"
+
+#. module: delivery_stamps
+#: model:ir.model.fields,field_description:delivery_stamps.field_delivery_carrier__stamps_username
+msgid "Stamps.com Username"
+msgstr "Stamps.com Usuario"
+
+#. module: delivery_stamps
+#: model:ir.model,name:delivery_stamps.model_stock_package_type
+msgid "Stock package type"
+msgstr "Tipo de Paquete de Stock"
+
+#. module: delivery_stamps
+#: model:ir.model.fields.selection,name:delivery_stamps.selection__delivery_carrier__stamps_image_type__zpl
+msgid "ZPL"
+msgstr "ZPL"
diff --git a/delivery_stamps/models/delivery_stamps.py b/delivery_stamps/models/delivery_stamps.py
index 1f3ef806..46d3e816 100644
--- a/delivery_stamps/models/delivery_stamps.py
+++ b/delivery_stamps/models/delivery_stamps.py
@@ -134,7 +134,9 @@ class ProviderStamps(models.Model):
         weight = self._stamps_convert_weight(weight)
 
         if not all((order.warehouse_id.partner_id.zip, order.partner_shipping_id.zip)):
-            raise ValidationError('Stamps needs ZIP. From: ' + str(order.warehouse_id.partner_id.zip) + ' To: ' + str(order.partner_shipping_id.zip))
+            raise ValidationError(_('Stamps needs ZIP. From: "%s" To: "%s"',
+                                  order.warehouse_id.partner_id.zip,
+                                  order.partner_shipping_id.zip))
 
         ret_val = service.create_shipping()
         ret_val.ShipDate = date_planned.strftime('%Y-%m-%d') if date_planned else date.today().isoformat()
@@ -160,7 +162,9 @@ class ProviderStamps(models.Model):
         recipient = self.get_recipient(order=order, picking=picking)
 
         if not all((shipper.zip, recipient.zip)):
-            raise ValidationError('Stamps needs ZIP. From: ' + str(shipper.zip) + ' To: ' + str(recipient.zip))
+            raise ValidationError(_('Stamps needs ZIP. From: "%s" To: "%s"',
+                                  shipper.zip,
+                                  recipient.zip))
 
         ret_val = service.create_shipping()
         ret_val.ShipDate = date_planned.strftime('%Y-%m-%d') if date_planned else date.today().isoformat()
@@ -180,7 +184,7 @@ class ProviderStamps(models.Model):
     def _stamps_address(self, service, partner):
         address = service.create_address()
         if not partner.name or len(partner.name) < 2:
-            raise ValidationError('Partner (%s) name must be more than 2 characters.' % (partner, ))
+            raise ValidationError(_('Partner (%s) name must be more than 2 characters.', partner))
         address.FullName = partner.name
         address.Address1 = partner.street
         if partner.street2:
@@ -206,7 +210,9 @@ class ProviderStamps(models.Model):
         ret = []
         company, from_partner, to_partner = self._stamps_get_addresses_for_picking(picking)
         if not all((from_partner.zip, to_partner.zip)):
-            raise ValidationError('Stamps needs ZIP/PostalCode. From: ' + str(from_partner.zip) + ' To: ' + str(to_partner.zip))
+            raise ValidationError(_('Stamps needs ZIP. From: "%s" To: "%s"',
+                                  from_partner.zip,
+                                  to_partner.zip))
 
         picking_packages = picking.package_ids
         package_carriers = picking_packages.mapped('carrier_id')
@@ -290,7 +296,7 @@ class ProviderStamps(models.Model):
         result = {
             'success': False,
             'price': 0.0,
-            'error_message': 'Error Retrieving Response from Stamps.com',
+            'error_message': _('Error Retrieving Response from Stamps.com'),
             'warning_message': False
         }
         date_planned = None
@@ -362,7 +368,7 @@ class ProviderStamps(models.Model):
                         if customs:
                             customs.ContentType = shipping.ContentType
                             if not picking.package_ids:
-                                raise ValidationError('Cannot use customs without packing items to ship first.')
+                                raise ValidationError(_('Cannot use customs without packing items to ship first.'))
                             customs_total = 0.0
                             product_values = {}
                             # Note multiple packages will result in all product being on customs form.
@@ -415,20 +421,20 @@ class ProviderStamps(models.Model):
                 _logger.warn(e)
                 if package_labels:
                     for name, label in package_labels:
-                        body = 'Cancelling due to error: ' + str(label.TrackingNumber)
+                        body = _(u'Cancelling due to error: ', label.TrackingNumber)
                         try:
                             service.remove_label(label.TrackingNumber)
                         except WebFault as e:
                             raise ValidationError(e)
                         else:
                             picking.message_post(body=body)
-                    raise ValidationError('Error on full shipment.  Attempted to cancel any previously shipped.')
-                raise ValidationError('Error on shipment. ' + str(e))
+                    raise ValidationError(_('Error on full shipment.  Attempted to cancel any previously shipped.'))
+                raise ValidationError(_('Error on shipment. "%s"', e))
             else:
                 carrier_price = 0.0
                 tracking_numbers = []
                 for name, label in package_labels:
-                    body = 'Shipment created into Stamps.com <br/> <b>Tracking Number : <br/>' + label.TrackingNumber + '</b>'
+                    body = _(u'Shipment created into Stamps.com <br/> <b>Tracking Number : <br/> "%s" </b>', label.TrackingNumber)
                     tracking_numbers.append(label.TrackingNumber)
                     carrier_price += float(label.Rate.Amount)
                     url = label.URL
@@ -519,7 +525,7 @@ class ProviderStamps(models.Model):
             res.append({
                 'success': False,
                 'price': 0.0,
-                'error_message': 'No valid rates returned from Stamps.com',
+                'error_message': _('No valid rates returned from Stamps.com'),
                 'warning_message': False
             })
         return res