How can I resolve product syncing issues in syncX: Stock Sync?

Common syncing issues are often caused by feed configuration, missing credentials, safety thresholds, or an unavailable source. If your feed shows zero products or stops running, check whether the zero‑quantity alert is triggered—syncX cancels the process when more than 80% of items have quantity 0 unless you disable or lower this threshold in your profile. A low-stock column in the source can therefore cause the process to be cancelled; verify that the feed is using the intended inventory quantity column. If a preview shows zero products, confirm that the selected source file contains the expected data and that your SKU or product identifier is mapped correctly; also check that no filters are excluding items. After adjustments, run the process again using Start Process to perform the actual sync.

For FTP feeds, verify the host is reachable and the connection details are correct. A “Timeout while connecting to Source HOST” error can prevent the feed from loading; check with the supplier or host provider if the FTP remains unavailable. Once the connection is restored, confirm that the feed updates successfully on its schedule.

Additional situations that may cause syncing issues:

• If products are duplicated instead of updated, confirm the product identifier (such as SKU or Handle + Options) matches exactly between your store and the source. Any character differences will cause Stock Sync to create new products.
• If variants are not updating, check whether the variant options (Option 1, Option 2, etc.) in your store match how the supplier structures their data. A mismatch may cause the feed to skip items.
• If the feed fails to read your file, ensure the correct file format is selected (for example, switching from XML to JSON if needed).
• Automatic sync can only run as frequently as once per hour; manual sync can be run anytime.

Updated on: 05/08/2026