diff --git a/NOTIFICATION_LOGIC.md b/NOTIFICATION_LOGIC.md
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+# Notification Logic Documentation
+
+## Overview
+
+The notification system has two levels of control:
+1. **Global Channel Toggle** - Enable/disable entire channel (Channels page)
+2. **Per-Event Channel Toggle** - Enable/disable channel for specific event (Events page)
+
+Both must be enabled for a notification to be sent.
+
+## Toggle Hierarchy
+
+```
+┌─────────────────────────────────────────┐
+│  Global Channel Toggle (Channels Page)  │
+│  - Affects ALL events                   │
+│  - Stored in wp_options                 │
+│  - woonoow_email_notifications_enabled  │
+│  - woonoow_push_notifications_enabled   │
+└─────────────────────────────────────────┘
+                    ↓
+┌─────────────────────────────────────────┐
+│ Per-Event Channel Toggle (Events Page)  │
+│  - Affects specific event only          │
+│  - Stored in woonoow_notification_settings│
+│  - Independent per event                │
+└─────────────────────────────────────────┘
+```
+
+## Decision Logic
+
+```php
+// Notification will be sent if:
+if (channel_globally_enabled && event_channel_enabled) {
+    send_notification();
+}
+```
+
+## Examples
+
+### Example 1: Email Disabled Globally
+```
+Global Email Toggle: OFF
+Event "Order Placed" Email Toggle: ON
+Result: ❌ No email sent
+```
+
+### Example 2: Email Enabled Globally, Disabled for Event
+```
+Global Email Toggle: ON
+Event "Order Placed" Email Toggle: OFF
+Result: ❌ No email sent
+```
+
+### Example 3: Both Enabled
+```
+Global Email Toggle: ON
+Event "Order Placed" Email Toggle: ON
+Result: ✅ Email sent
+```
+
+## Implementation
+
+### NotificationManager Class
+
+Located at: `includes/Core/Notifications/NotificationManager.php`
+
+**Key Methods:**
+
+1. `is_channel_enabled($channel_id)` - Check global channel state
+2. `is_event_channel_enabled($event_id, $channel_id)` - Check per-event state
+3. `should_send_notification($event_id, $channel_id)` - Validate both
+4. `send($event_id, $channel_id, $data)` - Send notification
+
+### Usage Example
+
+```php
+use WooNooW\Core\Notifications\NotificationManager;
+
+// Check if notification should be sent
+if (NotificationManager::should_send_notification('order_placed', 'email')) {
+    NotificationManager::send('order_placed', 'email', [
+        'order_id' => 123,
+        'customer_email' => 'customer@example.com',
+    ]);
+}
+```
+
+## Frontend Integration
+
+### Channels Page (`Channels.tsx`)
+
+- Shows global enable/disable toggle
+- Affects all events
+- API: `POST /notifications/channels/toggle`
+- Params: `{ channelId, enabled }`
+
+### Events Page (`Events.tsx`)
+
+- Shows per-event channel toggles
+- Independent for each event
+- API: `POST /notifications/events/update`
+- Params: `{ eventId, channels: { [channelId]: { enabled, recipient } } }`
+
+## Storage
+
+### Global Channel State
+```php
+// Email
+get_option('woonoow_email_notifications_enabled', true);
+
+// Push
+get_option('woonoow_push_notifications_enabled', true);
+```
+
+### Per-Event Channel State
+```php
+$settings = get_option('woonoow_notification_settings', []);
+$settings['order_placed']['channels']['email']['enabled'] = true;
+$settings['order_placed']['channels']['email']['recipient'] = 'customer';
+```
+
+## Testing Checklist
+
+- [ ] Disable email globally → No emails sent for any event
+- [ ] Enable email globally, disable for specific event → Email sent for other events only
+- [ ] Enable both → Email sent
+- [ ] Same tests for push notifications
+- [ ] Toggle persistence across page reloads
+- [ ] UI reflects current state correctly
+- [ ] Toast notifications on toggle
+- [ ] Green icon when enabled, gray when disabled
+
+## Future Enhancements
+
+1. **Batch Operations** - Enable/disable multiple events at once
+2. **Channel Priority** - Set fallback channels
+3. **Scheduling** - Delay or schedule notifications
+4. **Rate Limiting** - Prevent notification spam
+5. **Analytics** - Track notification delivery rates
diff --git a/includes/Core/Notifications/NotificationManager.php b/includes/Core/Notifications/NotificationManager.php
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+++ b/includes/Core/Notifications/NotificationManager.php
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+<?php
+/**
+ * Notification Manager
+ * 
+ * Handles notification sending logic and channel validation.
+ * 
+ * @package WooNooW\Core\Notifications
+ */
+
+namespace WooNooW\Core\Notifications;
+
+class NotificationManager {
+	
+	/**
+	 * Check if a channel is enabled globally
+	 * 
+	 * @param string $channel_id Channel ID (email, push, etc.)
+	 * @return bool
+	 */
+	public static function is_channel_enabled($channel_id) {
+		if ($channel_id === 'email') {
+			return (bool) get_option('woonoow_email_notifications_enabled', true);
+		} elseif ($channel_id === 'push') {
+			return (bool) get_option('woonoow_push_notifications_enabled', true);
+		}
+		
+		// For addon channels, check if they're registered and enabled
+		$channels = apply_filters('woonoow_notification_channels', []);
+		foreach ($channels as $channel) {
+			if ($channel['id'] === $channel_id) {
+				return isset($channel['enabled']) ? (bool) $channel['enabled'] : true;
+			}
+		}
+		
+		return false;
+	}
+	
+	/**
+	 * Check if a channel is enabled for a specific event
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $channel_id Channel ID
+	 * @return bool
+	 */
+	public static function is_event_channel_enabled($event_id, $channel_id) {
+		$settings = get_option('woonoow_notification_settings', []);
+		
+		if (!isset($settings[$event_id])) {
+			return false;
+		}
+		
+		$event = $settings[$event_id];
+		
+		if (!isset($event['channels'][$channel_id])) {
+			return false;
+		}
+		
+		return isset($event['channels'][$channel_id]['enabled']) 
+			? (bool) $event['channels'][$channel_id]['enabled'] 
+			: false;
+	}
+	
+	/**
+	 * Check if notification should be sent
+	 * 
+	 * Validates both global channel state and per-event channel state.
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $channel_id Channel ID
+	 * @return bool
+	 */
+	public static function should_send_notification($event_id, $channel_id) {
+		// Check if channel is globally enabled
+		if (!self::is_channel_enabled($channel_id)) {
+			return false;
+		}
+		
+		// Check if channel is enabled for this specific event
+		if (!self::is_event_channel_enabled($event_id, $channel_id)) {
+			return false;
+		}
+		
+		return true;
+	}
+	
+	/**
+	 * Get recipient for event channel
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $channel_id Channel ID
+	 * @return string Recipient type (admin, customer, both)
+	 */
+	public static function get_recipient($event_id, $channel_id) {
+		$settings = get_option('woonoow_notification_settings', []);
+		
+		if (!isset($settings[$event_id]['channels'][$channel_id]['recipient'])) {
+			return 'admin';
+		}
+		
+		return $settings[$event_id]['channels'][$channel_id]['recipient'];
+	}
+	
+	/**
+	 * Send notification through specified channel
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $channel_id Channel ID
+	 * @param array $data Notification data
+	 * @return bool Success status
+	 */
+	public static function send($event_id, $channel_id, $data = []) {
+		// Validate if notification should be sent
+		if (!self::should_send_notification($event_id, $channel_id)) {
+			return false;
+		}
+		
+		// Get recipient
+		$recipient = self::get_recipient($event_id, $channel_id);
+		
+		// Allow addons to handle their own channels
+		$sent = apply_filters(
+			'woonoow_send_notification',
+			false,
+			$event_id,
+			$channel_id,
+			$recipient,
+			$data
+		);
+		
+		// If addon handled it, return
+		if ($sent !== false) {
+			return $sent;
+		}
+		
+		// Handle built-in channels
+		if ($channel_id === 'email') {
+			return self::send_email($event_id, $recipient, $data);
+		} elseif ($channel_id === 'push') {
+			return self::send_push($event_id, $recipient, $data);
+		}
+		
+		return false;
+	}
+	
+	/**
+	 * Send email notification
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $recipient Recipient type
+	 * @param array $data Notification data
+	 * @return bool
+	 */
+	private static function send_email($event_id, $recipient, $data) {
+		// Email sending will be handled by WooCommerce email system
+		// This is a placeholder for future implementation
+		do_action('woonoow_send_email_notification', $event_id, $recipient, $data);
+		return true;
+	}
+	
+	/**
+	 * Send push notification
+	 * 
+	 * @param string $event_id Event ID
+	 * @param string $recipient Recipient type
+	 * @param array $data Notification data
+	 * @return bool
+	 */
+	private static function send_push($event_id, $recipient, $data) {
+		// Push notification sending will be implemented later
+		// This is a placeholder for future implementation
+		do_action('woonoow_send_push_notification', $event_id, $recipient, $data);
+		return true;
+	}
+}