Seth Broder

OnyxFlo Watchdog quietly monitors your WooCommerce orders in the background and takes snapshots at key points in the order lifecycle (checkout, thank you page, and status changes). It then compares those snapshots to detect suspicious changes or data inconsistencies.
OnyxFlo Watchdog uses a lightweight custom database table (<code>{prefix}onyxflo_watchdog_snapshots</code>) to store order snapshots. Uninstalling the plugin does not automatically delete existing snapshot data, so you can retain a historical audit log if needed.
Examples of what OnyxFlo Watchdog can help catch:
<ul>
<li>Orders where the cart or subtotal has changed between checkout and payment.</li>
<li>Orders that have been modified after payment but before fulfillment.</li>
<li>Data mismatches caused by buggy plugins, imports, or external integrations.</li>
</ul>
When a potential issue is found:
<ul>
<li>The order is changed to a custom status: Watchdog Flagged.</li>
<li>A clear warning notice appears on the order screen in wp-admin.</li>
<li>(Optional) An email alert can be sent to a configured address.</li>
<li>A snapshot history is stored so you can see what changed and when.</li>
</ul>
This plugin is aimed at stores that care about data integrity and want an extra layer of safety before orders are shipped or refunded.
<h3>Key Features</h3>
<ul>
<li>
Order snapshots 
Automatically logs snapshots of WooCommerce orders at:
<ul>
<li>Checkout (classic and block checkout)</li>
<li>Thank you page</li>
<li>Order status changes</li>
</ul>
</li>
<li>
Mismatch detection 
Compares snapshots to detect:
<ul>
<li>Cart changes (items added/removed/quantities changed)</li>
<li>Subtotal changes over a tolerance threshold</li>
<li>(Extensible for more rules later)</li>
</ul>
</li>
<li>
Custom order status: “Watchdog Flagged” 
Suspicious orders are moved into a dedicated status:
<ul>
<li>Highlighted in the admin order list</li>
<li>Clearly labeled so your team knows to review before fulfilling</li>
</ul>
</li>
<li>
Snapshot viewer 
View the snapshot history for a given order directly in wp-admin to see what changed over time.
</li>
<li>
Logging 
Optional file logging for debugging and audit trails, stored inside the WordPress uploads directory (<code>/wp-content/uploads/onyxflo-watchdog/</code>).
</li>
<li>
Lightweight and focused 
No bloat, no marketing overlays, no tracking. Just tools to help you protect your orders.
</li>
</ul>
<h3>Requirements</h3>
<ul>
<li>WooCommerce (latest major version recommended)</li>
<li>WordPress 5.8+</li>
<li>PHP 7.4+ (PHP 8.x supported)</li>
</ul>

OnyxFlo Watchdog for WooCommerce

Monitors WooCommerce orders for changes or mismatches and automatically flags suspicious orders to help ensure accuracy and prevent errors.

Pär Thernström

Bring more loggers to <a href="https://simple-history.com" rel="nofollow ugc">WordPress user history plugin Simple History</a>. 
That are useful for developers during development of a site or to maintain a live site.
<h3>Important</h3>
Please note that this plugin is no longer actively maintained and only receives security fixes.
<h3>Modern and up to date alternatives</h3>
For an up to date alternative please see the <a href="https://simple-history.com/add-ons/debug-and-monitor/" rel="nofollow ugc">Debug & Monitor add-on</a> which logs WP REST API requests, sent emails, HTTP API requests, and WP cron jobs.
<h3>Get more features with Simple History Premium</h3>
Need advanced WordPress audit logging capabilities? Simple History Premium extends your site monitoring with powerful features:
Enhanced WordPress Activity Logging:
<ul>
<li>Advanced Analytics Dashboard – Comprehensive stats and visual activity tracking</li>
<li>Custom Event Logging – Add manual entries and notifications to your audit trail</li>
<li>Stealth Mode – Control user access with granular permissions</li>
<li>Flexible Log Retention – Configure automatic cleanup or keep logs indefinitely</li>
<li>Data Export Tools – Export logs in CSV/JSON format for analysis</li>
<li>Security Features – IP anonymization and login attempt location tracking</li>
</ul>
<a href="https://simple-history.com/premium/" rel="nofollow ugc">» Get Simple History Premium</a>
<h3>Included loggers and plugins</h3>
Post to Slack
All your events is posted to a <a href="https://slack.com/" rel="nofollow ugc">Slack</a> channel of your choice, using an <a href="https://api.slack.com/incoming-webhooks" rel="nofollow ugc">incoming webhook</a>. Yes, with this plugin enabled 
there is no need what so ever to ever leave Slack to see what’s happening on your site or the site of your 
clients or… well, on any site where you have Simple Histor and this plugin enabled.
WP_Mail-logger
See all mails sent with wp_mail(), no matter what the recipient address is. 
changelog
404 logger
View page visits that load the 404 template.
JavaScript error logger
See what JavaScript errors users that visit your site is getting.
SystemLog logger
Log all messages from Simple History to the syslog on the server. With this logger enabled there is no need to use the beautiful GUI of Simple History ;).
HTTP API logger
Log all usage of HTTP calls from functions like wp_remote_post() and wp_remote_get().
You can the URL requested, the arguments posted and the full returned result, including server headers.
The time for the request to complete is also logged. Great for debugging!

Developer Loggers for Simple History

Useful loggers for SimpleHistory for developers during development of a site or to maintain a live site.

OnyxFlo Watchdog for WooCommerce vs Developer Loggers for Simple History