Alerts
Understand why alerts appear, what stock oscillation means, and what to check when inventory behavior may need attention.
Alerts are created when SKU Stock Sync detects something that may need your attention.
Alerts do not always mean something is broken, but they should be reviewed. They can help you spot inventory behavior that may cause unexpected syncing results.
Info: SKU Stock Sync creates alerts for stock oscillation, and for when the app was disconnected from your store. Stock oscillation usually means inventory has been moving back and forth repeatedly for the same item or group.
Where alerts appear
Alerts will appear in the Alerts page located on the app sidebar. If you have any alerts you'll notice a number on the right side of the button.
Stock oscillation alerts
A stock oscillation alert means SKU Stock Sync detected repeated inventory changes that may indicate a conflict or unstable inventory behavior.
This is often caused by another app, warehouse system, feed, automation, or custom integration also updating the same inventory quantities.
Note: Groups stocked at locations managed by a fulfillment app (for example, Shopify Collective) are now automatically skipped during sync, so oscillation caused specifically by that pattern should be rarer than before. Oscillation from other integrations (warehouse systems, feeds, or custom scripts) can still occur and is still worth reviewing.
Warning: Stock oscillation should be reviewed as soon as possible. If two systems keep changing the same inventory back and forth, your Shopify stock levels may become confusing or unreliable.
See Another app is changing inventory, for more details.
Disconnected alerts
When a trial or plan ends, the app keeps recording inventory changes for 7 days. If no plan is chosen in that time, it disconnects from your store, and changes made while disconnected aren't recorded.
When you choose a plan again, the app reconnects, checks every group against Shopify, and shows a Stock Sync was disconnected alert. The alert says how long the app was disconnected, and how many groups didn't match Shopify once the check finished. You then choose how to handle them:
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Apply Shopify's changes keeps the stock levels Shopify holds now, for example after sales made while the app was disconnected, and syncs each change to the rest of its group on the next update. It covers every group that didn't match, and resolves the alert.
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Review out-of-sync groups opens the Groups page filtered to those groups, to go through them one by one. See Checking if a group is in sync.
If the check couldn't finish, the alert says so instead, and links to the groups that still need checking.
Important things to know
- Alerts are meant to help you investigate possible issues.
- Stock oscillation usually points to repeated inventory changes, often from multiple systems updating the same stock.
- Shopify adjustment history is the best place to check who changed inventory for a specific variant and location.
When to contact support
If you are unsure what caused an alert, contact support and include:
- The alert type
- The affected SKU
- The Shopify location
- The affected product or variant
- A screenshot of the alert
- A screenshot of Shopify adjustment history with the Created by column visible
- Any other apps, feeds, warehouse systems, or integrations that update inventory
Note: The most useful details are the affected SKU, location, alert details, Shopify adjustment history, and any other systems that may update inventory. This will help me investigate.
SKU Stock Sync Docs