Mountaineering Labs Multi-Store Stock Sync for WooCommerce
Central stock management across multiple WooCommerce stores. One hub owns the stock; spokes stay in sync automatically via SKU matching.
Use with caution
Mountaineering Labs Multi-Store… works, but test it on a staging site before relying on it in 2026. Was last updated 2 months ago, and scores 55/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Mountaineering Labs Multi-S… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| inventory | >100 |
| multistore | #16 |
| stock | >100 |
| synchronization | >100 |
| woocommerce | >100 |
About Mountaineering Labs Multi-Store Stock S…
From the official readme · v1.4.1Description
Run several WooCommerce stores that sell the same products — for example a domestic and an international site — and keep stock quantities in sync automatically.
How it works
- One site is configured as the hub, the authoritative source of stock levels. The other sites are spokes.
- When stock changes anywhere (a sale, a refund/restock, or a manual edit in wp-admin), the change is picked up via WooCommerce’s stock hooks and sent to the hub.
- The hub updates its own stock atomically (safe under concurrent sales on different sites) and broadcasts the resulting authoritative value to all spokes.
- Products and variations are matched across sites by SKU. Works with both simple and variable products.
Reliable by design
- Outbound messages are written to a local queue (a fast database insert) — customer-facing requests never wait on network calls to other sites.
- A background worker delivers queued messages within seconds and retries with backoff if a peer site is temporarily unreachable. Temporary outages cause delay, not data loss.
- Every message carries a unique id; receivers ignore duplicates, so retries can never double-apply a stock change.
Secure
- Sites communicate over a dedicated REST endpoint authenticated with an HMAC-SHA256 signature over a shared secret — no WooCommerce API keys needed.
- Stale requests are rejected and duplicate message ids are ignored (replay protection).
Languages
English admin UI, fully internationalized. Translations are managed through translate.wordpress.org and delivered automatically.
Installation
- Install and activate the plugin on every site that should participate.
- On the hub site: go to WooCommerce → Stock Sync, set role Hub, choose a Site ID, generate a shared secret, and list the spoke URLs (one per line).
- On each spoke site: set role Spoke, choose a Site ID, paste the same shared secret, and set the Hub URL.
- On the hub: click Run full resync to push current stock levels to all spokes.
- Test: change a stock quantity on one site and confirm it updates on the others. The Recent events log on each site’s settings page shows exactly what was sent and received.
Corresponding products/variations must share the same SKU on every site, and have “Manage stock” enabled. For variable products the SKU on each variation is what counts.
Frequently asked questions
Do all products have to exist on every site?
No. Products that only exist on some sites are simply not synced — unknown SKUs are ignored by the receiver. However, every product you want synced must exist on the hub, since all sync flows through it.
Does a spoke work if the hub is down?
Yes. Orders complete normally — stock reports are queued locally and delivered automatically once the hub is reachable again.
Why is sync slow on my site?
Delivery runs on WP-Cron, which is triggered by site visits. On low-traffic sites, configure a real server cron job to hit wp-cron.php on each site.
My sites are on the same server and I see timeouts in the log
Ask your host about loopback requests and the number of concurrent PHP workers. The queue retries automatically, so changes still arrive — just with delay.
Can I map different SKUs to each other across sites?
Identical SKUs are strongly recommended, but the wcss_resolve_sku filter lets developers map incoming SKUs to local product IDs in code.
Changelog
Adds five new admin languages. No functional changes.
1.4.1
- Display name now includes “Multi-Store” to better describe what the plugin does.
1.4.0
- Renamed to Mountaineering Labs Stock Sync for WooCommerce for a distinctive name.
- Admin settings script is now enqueued via wp_enqueue_script instead of inline output.
- Removed bundled translation files; translations are handled by translate.wordpress.org.
1.3.0
- Renamed to Mountaineering Labs Stock Sync for WooCommerce (trademark compliance).
- Hardened SQL statements and cleaned up coding-standard warnings.
1.2.0
- Added German, French, Spanish, Danish and Swedish translations.
1.1.0
- English admin UI with Norwegian (bokmål and nynorsk) translations.
- Replay/duplicate protection: every message carries a unique id; retries can no longer double-apply a change.
- uninstall.php: cleans up all plugin data on deletion.
- Schema migrations now run on in-place upgrades as well as activation.
1.0.0
- Initial release: hub/spoke stock sync with signed messages, durable outbound queue with retry, and full resync.
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
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FAQ
Mountaineering Labs Multi-Store Sto…: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 5, 2026
Is Mountaineering Labs Multi-Store… free?
Yes. Mountaineering Labs Multi-Store… is free to download and use from the official WordPress.org plugin directory.
Is Mountaineering Labs Multi-Store… safe to use in 2026?
Mountaineering Labs Multi-Store… works, but test it on a staging site before relying on it in 2026. Was last updated 2 months ago, and scores 55/100 on our health check.
How many websites use Mountaineering Labs Multi-Store…?
Mountaineering Labs Multi-Store… is active on <10 WordPress websites and has been downloaded 202 times since it launched in July 2026. It was downloaded 67 times in the last 30 days.
Does Mountaineering Labs Multi-Store… work with WordPress 7.1?
Mountaineering Labs Multi-Store… is officially tested up to WordPress 7.0.6, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does Mountaineering Labs Multi-Store… need?
Mountaineering Labs Multi-Store… requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Mountaineering Labs Multi-Store… last updated?
The latest version, 1.4.1, was released on July 23, 2026 (2 months ago).
Who makes Mountaineering Labs Multi-Store…?
Mountaineering Labs Multi-Store… is developed and maintained by mountaineeringlabs.
What are the best alternatives to Mountaineering Labs Multi-Store…?
The most popular alternatives to Mountaineering Labs Multi-Store… are Smart Manager (10K+ installs), WCPOS (5K+ installs) and PayPal POS for WooCommerce (4K+ installs).
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