diff --git a/fusion-plating/fusion_plating_notifications/models/account_move.py b/fusion-plating/fusion_plating_notifications/models/account_move.py
index 3a4b0a41..509b0ecd 100644
--- a/fusion-plating/fusion_plating_notifications/models/account_move.py
+++ b/fusion-plating/fusion_plating_notifications/models/account_move.py
@@ -3,4 +3,56 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 # Part of the Fusion Plating product family.
 
-# Placeholder — implemented in Task 3.
+import logging
+
+from odoo import models
+
+_logger = logging.getLogger(__name__)
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    def action_post(self):
+        res = super().action_post()
+        for move in self:
+            if move.move_type == 'out_invoice' and move.partner_id:
+                # Find linked SO
+                so = False
+                if move.invoice_origin:
+                    so = self.env['sale.order'].search(
+                        [('name', '=', move.invoice_origin)], limit=1,
+                    )
+                self._send_fp_notification(
+                    'invoice_posted', move, move.partner_id, sale_order=so,
+                )
+        return res
+
+    def _send_fp_notification(self, trigger_event, record, partner, sale_order=None):
+        """Send a notification email and log it."""
+        template = self.env['fp.notification.template'].search(
+            [('trigger_event', '=', trigger_event), ('active', '=', True)], limit=1,
+        )
+        if not template or not template.mail_template_id:
+            return
+        try:
+            template.mail_template_id.send_mail(record.id, force_send=False)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'sent',
+            })
+        except Exception as e:
+            _logger.warning('FP notification failed (%s): %s', trigger_event, e)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'failed',
+                'error_message': str(e),
+            })
diff --git a/fusion-plating/fusion_plating_notifications/models/fp_receiving.py b/fusion-plating/fusion_plating_notifications/models/fp_receiving.py
index 3a4b0a41..d692f5d1 100644
--- a/fusion-plating/fusion_plating_notifications/models/fp_receiving.py
+++ b/fusion-plating/fusion_plating_notifications/models/fp_receiving.py
@@ -3,4 +3,50 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 # Part of the Fusion Plating product family.
 
-# Placeholder — implemented in Task 3.
+import logging
+
+from odoo import models
+
+_logger = logging.getLogger(__name__)
+
+
+class FpReceiving(models.Model):
+    _inherit = 'fp.receiving'
+
+    def action_accept(self):
+        res = super().action_accept()
+        for rec in self:
+            self._send_fp_notification(
+                'parts_received', rec, rec.partner_id,
+                sale_order=rec.sale_order_id,
+            )
+        return res
+
+    def _send_fp_notification(self, trigger_event, record, partner, sale_order=None):
+        """Send a notification email and log it."""
+        template = self.env['fp.notification.template'].search(
+            [('trigger_event', '=', trigger_event), ('active', '=', True)], limit=1,
+        )
+        if not template or not template.mail_template_id:
+            return
+        try:
+            template.mail_template_id.send_mail(record.id, force_send=False)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'sent',
+            })
+        except Exception as e:
+            _logger.warning('FP notification failed (%s): %s', trigger_event, e)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'failed',
+                'error_message': str(e),
+            })
diff --git a/fusion-plating/fusion_plating_notifications/models/sale_order.py b/fusion-plating/fusion_plating_notifications/models/sale_order.py
index 3a4b0a41..72002c92 100644
--- a/fusion-plating/fusion_plating_notifications/models/sale_order.py
+++ b/fusion-plating/fusion_plating_notifications/models/sale_order.py
@@ -3,4 +3,49 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 # Part of the Fusion Plating product family.
 
-# Placeholder — implemented in Task 3.
+import logging
+
+from odoo import models
+
+_logger = logging.getLogger(__name__)
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    def action_confirm(self):
+        res = super().action_confirm()
+        for order in self:
+            self._send_fp_notification(
+                'so_confirmed', order, order.partner_id, sale_order=order,
+            )
+        return res
+
+    def _send_fp_notification(self, trigger_event, record, partner, sale_order=None):
+        """Send a notification email and log it."""
+        template = self.env['fp.notification.template'].search(
+            [('trigger_event', '=', trigger_event), ('active', '=', True)], limit=1,
+        )
+        if not template or not template.mail_template_id:
+            return
+        try:
+            template.mail_template_id.send_mail(record.id, force_send=False)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'sent',
+            })
+        except Exception as e:
+            _logger.warning('FP notification failed (%s): %s', trigger_event, e)
+            self.env['fp.notification.log'].create({
+                'template_id': template.id,
+                'trigger_event': trigger_event,
+                'sale_order_id': sale_order.id if sale_order else False,
+                'partner_id': partner.id if partner else False,
+                'recipient_email': partner.email if partner else '',
+                'status': 'failed',
+                'error_message': str(e),
+            })
diff --git a/fusion-plating/fusion_plating_notifications/views/fp_notification_log_views.xml b/fusion-plating/fusion_plating_notifications/views/fp_notification_log_views.xml
index 6fa84137..b710694c 100644
--- a/fusion-plating/fusion_plating_notifications/views/fp_notification_log_views.xml
+++ b/fusion-plating/fusion_plating_notifications/views/fp_notification_log_views.xml
@@ -1,3 +1,112 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
+
+    <!-- ============================================================ -->
+    <!--                  Notification Log — List                     -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_log_list" model="ir.ui.view">
+        <field name="name">fp.notification.log.list</field>
+        <field name="model">fp.notification.log</field>
+        <field name="arch" type="xml">
+            <list default_order="sent_date desc">
+                <field name="sent_date"/>
+                <field name="trigger_event"/>
+                <field name="partner_id" string="Customer"/>
+                <field name="recipient_email"/>
+                <field name="status" widget="badge"
+                       decoration-success="status == 'sent'"
+                       decoration-danger="status == 'failed'"/>
+                <field name="template_id"/>
+            </list>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--                  Notification Log — Form                     -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_log_form" model="ir.ui.view">
+        <field name="name">fp.notification.log.form</field>
+        <field name="model">fp.notification.log</field>
+        <field name="arch" type="xml">
+            <form edit="0">
+                <sheet>
+                    <group>
+                        <group>
+                            <field name="sent_date"/>
+                            <field name="trigger_event"/>
+                            <field name="template_id"/>
+                            <field name="status" widget="badge"
+                                   decoration-success="status == 'sent'"
+                                   decoration-danger="status == 'failed'"/>
+                        </group>
+                        <group>
+                            <field name="partner_id" string="Customer"/>
+                            <field name="recipient_email"/>
+                            <field name="sale_order_id"/>
+                            <field name="mail_mail_id"/>
+                        </group>
+                    </group>
+                    <group string="Attachments" invisible="not attachment_names">
+                        <field name="attachment_names" nolabel="1" colspan="2"/>
+                    </group>
+                    <group string="Error Details" invisible="status != 'failed'">
+                        <field name="error_message" nolabel="1" colspan="2"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--                  Notification Log — Search                   -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_log_search" model="ir.ui.view">
+        <field name="name">fp.notification.log.search</field>
+        <field name="model">fp.notification.log</field>
+        <field name="arch" type="xml">
+            <search>
+                <field name="partner_id" string="Customer"/>
+                <field name="trigger_event"/>
+                <separator/>
+                <filter name="filter_sent" string="Sent"
+                        domain="[('status', '=', 'sent')]"/>
+                <filter name="filter_failed" string="Failed"
+                        domain="[('status', '=', 'failed')]"/>
+                <separator/>
+                <filter name="filter_today" string="Today"
+                        domain="[('sent_date', '&gt;=', (context_today()).strftime('%Y-%m-%d'))]"/>
+                <filter name="filter_this_week" string="This Week"
+                        domain="[('sent_date', '&gt;=', (context_today() - datetime.timedelta(days=context_today().weekday())).strftime('%Y-%m-%d'))]"/>
+                <separator/>
+                <group expand="1">
+                    <filter name="group_trigger" string="Trigger Event"
+                            context="{'group_by': 'trigger_event'}"/>
+                    <filter name="group_status" string="Status"
+                            context="{'group_by': 'status'}"/>
+                    <filter name="group_partner" string="Customer"
+                            context="{'group_by': 'partner_id'}"/>
+                </group>
+            </search>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--                  Notification Log — Action                   -->
+    <!-- ============================================================ -->
+    <record id="action_fp_notification_log" model="ir.actions.act_window">
+        <field name="name">Notification Log</field>
+        <field name="res_model">fp.notification.log</field>
+        <field name="view_mode">list,form</field>
+        <field name="search_view_id" ref="view_fp_notification_log_search"/>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                No notifications sent yet
+            </p>
+            <p>
+                This log records every notification email sent by the system,
+                including failures for troubleshooting.
+            </p>
+        </field>
+    </record>
+
 </odoo>
diff --git a/fusion-plating/fusion_plating_notifications/views/fp_notification_template_views.xml b/fusion-plating/fusion_plating_notifications/views/fp_notification_template_views.xml
index 6fa84137..a77aecfd 100644
--- a/fusion-plating/fusion_plating_notifications/views/fp_notification_template_views.xml
+++ b/fusion-plating/fusion_plating_notifications/views/fp_notification_template_views.xml
@@ -1,3 +1,98 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
+
+    <!-- ============================================================ -->
+    <!--               Notification Template — List                   -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_template_list" model="ir.ui.view">
+        <field name="name">fp.notification.template.list</field>
+        <field name="model">fp.notification.template</field>
+        <field name="arch" type="xml">
+            <list decoration-muted="not active">
+                <field name="name"/>
+                <field name="trigger_event"/>
+                <field name="mail_template_id"/>
+                <field name="active" widget="boolean_toggle"/>
+            </list>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--               Notification Template — Form                   -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_template_form" model="ir.ui.view">
+        <field name="name">fp.notification.template.form</field>
+        <field name="model">fp.notification.template</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <div class="oe_title">
+                        <h1>
+                            <field name="name" placeholder="e.g. Order Confirmed Notification"/>
+                        </h1>
+                    </div>
+                    <group>
+                        <group>
+                            <field name="trigger_event"/>
+                            <field name="mail_template_id"/>
+                        </group>
+                        <group>
+                            <field name="active" widget="boolean_toggle"/>
+                        </group>
+                    </group>
+                    <group string="Attachments">
+                        <group>
+                            <field name="attach_coc"/>
+                            <field name="attach_thickness_report"/>
+                            <field name="attach_invoice"/>
+                        </group>
+                        <group>
+                            <field name="attach_packing_list"/>
+                            <field name="attach_pod"/>
+                        </group>
+                    </group>
+                    <group string="CC Recipients">
+                        <field name="cc_internal_ids" widget="many2many_tags" nolabel="1" colspan="2"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--               Notification Template — Search                 -->
+    <!-- ============================================================ -->
+    <record id="view_fp_notification_template_search" model="ir.ui.view">
+        <field name="name">fp.notification.template.search</field>
+        <field name="model">fp.notification.template</field>
+        <field name="arch" type="xml">
+            <search>
+                <field name="name"/>
+                <field name="trigger_event"/>
+                <filter name="filter_active" string="Active" domain="[('active', '=', True)]"/>
+                <filter name="filter_inactive" string="Inactive" domain="[('active', '=', False)]"/>
+            </search>
+        </field>
+    </record>
+
+    <!-- ============================================================ -->
+    <!--               Notification Template — Action                 -->
+    <!-- ============================================================ -->
+    <record id="action_fp_notification_template" model="ir.actions.act_window">
+        <field name="name">Notification Templates</field>
+        <field name="res_model">fp.notification.template</field>
+        <field name="view_mode">list,form</field>
+        <field name="search_view_id" ref="view_fp_notification_template_search"/>
+        <field name="context">{'active_test': False}</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Create a notification template
+            </p>
+            <p>
+                Map trigger events to email templates to automatically notify
+                customers at key workflow milestones.
+            </p>
+        </field>
+    </record>
+
 </odoo>
diff --git a/fusion-plating/fusion_plating_notifications/views/fp_notifications_menu.xml b/fusion-plating/fusion_plating_notifications/views/fp_notifications_menu.xml
index 6fa84137..025a0471 100644
--- a/fusion-plating/fusion_plating_notifications/views/fp_notifications_menu.xml
+++ b/fusion-plating/fusion_plating_notifications/views/fp_notifications_menu.xml
@@ -1,3 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
+
+    <menuitem id="menu_fp_notification_templates"
+              name="Notification Templates"
+              parent="fusion_plating.menu_fp_config"
+              action="action_fp_notification_template"
+              sequence="80"
+              groups="fusion_plating.group_fusion_plating_manager"/>
+
+    <menuitem id="menu_fp_notification_log"
+              name="Notification Log"
+              parent="fusion_plating.menu_fp_config"
+              action="action_fp_notification_log"
+              sequence="85"
+              groups="fusion_plating.group_fusion_plating_supervisor"/>
+
 </odoo>