diff --git a/l10n_mx_ir_attachment_facturae/data/workflow.xml b/l10n_mx_ir_attachment_facturae/data/workflow.xml
index e8488959c2d5b5feeaa5deef62d868a91de577c8..a59a01e9995aca1be1da7d30a9481d88c91a0fb5 100644
--- a/l10n_mx_ir_attachment_facturae/data/workflow.xml
+++ b/l10n_mx_ir_attachment_facturae/data/workflow.xml
@@ -42,14 +42,6 @@
             <field name="split_mode">XOR</field>
             <field name="action">action_printable()</field>
         </record>
-        <record id="workflow_activity_send_customer" model="workflow.activity">
-            <field name="kind">function</field>
-            <field name="name">send_customer</field>
-            <field name="join_mode">XOR</field>
-            <field model="workflow" name="wkf_id" ref="workflow_ir_attachment_facturae_mx_basic"/>
-            <field name="split_mode">XOR</field>
-            <field name="action">action_send_customer()</field>
-        </record>
         <record id="workflow_activity_cancel" model="workflow.activity">
             <field name="kind">function</field>
             <field name="name">cancel</field>
@@ -80,15 +72,13 @@
             <field name="act_to" ref="workflow_activity_sign"/>
         </record>
         <record id="workflow_transition_act_sign_to_act_printable" model="workflow.transition">
+            <field name="signal"></field>
             <field name="act_from" ref="workflow_activity_sign"/>
             <field name="act_to" ref="workflow_activity_printable"/>
         </record>
-        <record id="workflow_transition_act_printable_to_act_send_customer" model="workflow.transition">
+        <record id="workflow_transition_act_printable_to_act_done" model="workflow.transition">
+            <field name="signal"></field>
             <field name="act_from" ref="workflow_activity_printable"/>
-            <field name="act_to" ref="workflow_activity_send_customer"/>
-        </record>
-        <record id="workflow_transition_act_send_customer_to_act_done" model="workflow.transition">
-            <field name="act_from" ref="workflow_activity_send_customer"/>
             <field name="act_to" ref="workflow_activity_done"/>
         </record>
         <!-- from all states to cancel-->
@@ -112,11 +102,6 @@
             <field name="act_from" ref="workflow_activity_printable"/>
             <field name="act_to" ref="workflow_activity_cancel"/>
         </record>
-        <record id="workflow_transition_act_sent_customer_to_act_cancel" model="workflow.transition">
-            <field name="signal">signal_cancel</field>
-            <field name="act_from" ref="workflow_activity_send_customer"/>
-            <field name="act_to" ref="workflow_activity_cancel"/>
-        </record>
         <record id="workflow_transition_act_done_to_act_cancel" model="workflow.transition">
             <field name="signal">signal_cancel</field>
             <field name="act_from" ref="workflow_activity_done"/>
diff --git a/l10n_mx_ir_attachment_facturae/models/ir_attachment_facturae.py b/l10n_mx_ir_attachment_facturae/models/ir_attachment_facturae.py
index 70acce28faa48804fea70d3196c3f8f450b48a14..d9b5ef2d3fcff5a38adc45a8b43f7beba978e182 100644
--- a/l10n_mx_ir_attachment_facturae/models/ir_attachment_facturae.py
+++ b/l10n_mx_ir_attachment_facturae/models/ir_attachment_facturae.py
@@ -110,7 +110,6 @@ class ir_attachment_facturae_mx(orm.Model):
             ('confirmed', 'Confirmed'),
             ('signed', 'Signed'),
             ('printable', 'Printable Format Generated'),
-            ('sent_customer', 'Sent Customer'),
             ('done', 'Done'),
             ('cancel', 'Cancelled'), ],
             'State', readonly=True, required=True, help='State of attachments'
@@ -219,8 +218,6 @@ class ir_attachment_facturae_mx(orm.Model):
              'file_xml_sign_index': index_xml},
             context=context
         )
-        # TODO: Remove the need to commit database if not exception
-        cr.commit()
         return True
 
     def signal_printable(self, cr, uid, ids, context=None):
@@ -275,90 +272,6 @@ class ir_attachment_facturae_mx(orm.Model):
              'file_pdf_index': index_pdf},
             context=context
         )
-        # TODO: Remove the need to commit database if not exception
-        cr.commit()
-        return True
-
-    def signal_send_customer(self, cr, uid, ids, context=None):
-        """
-        If attachment workflow hangs we need to send a signal to continue
-        """
-        return self.action_send_customer(cr, uid, ids, context)
-
-    def action_send_customer(self, cr, uid, ids, context=None):
-        if context is None:
-            context = {}
-        attachments = []
-        # Grab invoice
-        invoice = self.browse(cr, uid, ids)[0].invoice_id
-
-        # Grab attachments
-        adjuntos = self.pool.get('ir.attachment').search(
-            cr, uid,
-            [('res_model', '=', 'account.invoice'), ('res_id', '=', invoice)]
-        )
-        for attach in self.pool.get('ir.attachment').browse(cr, uid, adjuntos):
-            attachments.append(attach.id)
-
-        # Send mail
-        obj_ir_mail_server = self.pool.get('ir.mail_server')
-        mail_server_id = obj_ir_mail_server.search(
-            cr, uid, [('name', '=', 'FacturaE')], context=None
-        )
-        if mail_server_id:
-            _logger.debug('Testing SMTP servers')
-            for smtp_server in obj_ir_mail_server.browse(
-                cr, uid, mail_server_id, context=context
-            ):
-                try:
-                    obj_ir_mail_server.connect(
-                        smtp_server.smtp_host, smtp_server.smtp_port,
-                        user=smtp_server.smtp_user,
-                        password=smtp_server.smtp_pass,
-                        encryption=smtp_server.smtp_encryption,
-                        smtp_debug=smtp_server.smtp_debug)
-                except Exception, e:
-                    raise orm.except_orm(
-                        _("Connection test failed!"),
-                        _("Configure outgoing mail server named FacturaE: %s")
-                        % tools.ustr(e)
-                    )
-
-            # Server tested, create mail content
-            _logger.debug('Start processing mail template')
-            template_pool = self.pool.get('email.template')
-            template_id = self.get_tmpl_email_id(cr, uid, ids, context=context)
-            values = template_pool.generate_email(
-                cr, uid, template_id, invoice.id, context=context
-            )
-            assert values.get('email_from'), 'email_from is missing or empty after template rendering, send_mail() cannot proceed'
-            # Get recipients
-            recipients = [int(values['email_recipients'])]
-            # Not exist this field on mail.mail module
-            del values['email_recipients']
-            # Create mail
-            mail_mail = self.pool.get('mail.mail')
-            msg_id = mail_mail.create(cr, uid, values, context=context)
-            # Process attachments
-            mail_mail.write(
-                cr, uid, msg_id,
-                {'attachment_ids': [(6, 0, attachments)]},
-                context=context
-            )
-            # Send mail
-            mail_mail.send(
-                cr, uid, [msg_id], recipient_ids=recipients,
-                context=context
-            )
-        else:
-            raise orm.except_orm(
-                _('Warning'),
-                _('Not Found outgoing mail server name of "FacturaE".'
-                  '\nConfigure the outgoing mail server named "FacturaE"')
-            )
-        self.write(cr, uid, ids, {'state': 'done'}, context=context)
-        # TODO: Remove the need to commit database if not exception
-        cr.commit()
         return True
 
     def signal_cancel(self, cr, uid, ids, context=None):