WooCommerce 11 can deliver large POS catalogs in chunks, but a tablet or browser may run out of IndexedDB, cache, or filesystem quota after download begins. Partial writes and interrupted apply steps can leave an old catalog labeled as current.
Use this for retail, event, kiosk, and mobile POS deployments with large variable-product catalogs, low-storage devices, long offline periods, shared tablets, or managed browser storage policies.
Quick answer
Fill a test device close to its storage limit, begin catalog sync, and force quota failure during both chunk storage and final apply. Keep the active catalog separate from staging data, verify checksums before an atomic pointer swap, clean abandoned chunks, and show operators a recoverable state. Offline sales must remain queued and deduplicated throughout recovery.
What to check first
- Record browser, operating system, free storage estimate, IndexedDB usage, cache usage, catalog revision, chunk count, checksum, and last successful apply time.
- Force failure before the first write, mid-chunk sequence, after all chunks download, during index creation, and immediately before the active-revision swap.
- Close the app, restart the device, lose network access, and resume to determine which temporary records survive.
- Verify abandoned chunks are removed without deleting the active catalog or queued offline transactions.
- Rejoin the server and compare product count, prices, taxes, variations, visibility, stock, revision, checksum, and sales exactly once.
Diagnostic table
Use this table to keep the work practical. It connects the symptom to evidence and a verification step.
| Action | Evidence to collect | How to verify |
|---|
| Measure storage before sync | Record browser, operating system, free storage estimate, IndexedDB usage, cache usage, catalog revision, chunk count, checksum, and last successful apply time. | The device never labels a partial catalog as current. |
| Separate active and staging catalogs | Force failure before the first write, mid-chunk sequence, after all chunks download, during index creation, and immediately before the active-revision swap. | Restarting preserves the active catalog and queued sales. |
| Verify all chunks and checksums | Close the app, restart the device, lose network access, and resume to determine which temporary records survive. | Cleanup removes only abandoned staging records. |
| Swap revisions atomically | Verify abandoned chunks are removed without deleting the active catalog or queued offline transactions. | The recovered revision, checksum, product values, and transaction ledger match the server. |
Why this usually happens
- Browser storage estimates can change while synchronization is running.
- Chunk download and catalog activation are separate operations.
- Cleanup code can remove active data when namespaces are unclear.
- An interrupted index build can survive without a trustworthy completion marker.
Useful command or data shape
Adapt paths, IDs, and privacy handling to the site before running commands or storing data on production.
device_id: event-02
active_revision: 184
target_revision: 185
chunks_received: 18/20
staging_checksum: incomplete
error: QuotaExceededError
active_pointer_changed: false
offline_sales_preserved: 7
operator_state: free_space_then_resume
Safe fix order
Do the work in a sequence that makes each result easy to prove. Stop if a step produces new evidence that changes the incident scope.
- Measure storage before sync
- Separate active and staging catalogs
- Verify all chunks and checksums
- Swap revisions atomically
- Clean up and reconcile offline work
Decision rule
Pass when every quota failure leaves the last complete catalog active, temporary data is recoverable or removable, queued sales remain intact, and a later retry reaches exact server parity.
What to tell the client or owner
Give the owner the affected versions, exact workflow, observed result, business impact, evidence location, temporary control, named owner, and next review time. Remove credentials and personal data from shared screenshots and logs.
Production verification checklist
- The device never labels a partial catalog as current.
- Restarting preserves the active catalog and queued sales.
- Cleanup removes only abandoned staging records.
- The recovered revision, checksum, product values, and transaction ledger match the server.
Mistakes to avoid
- Do not change several plugins, cache rules, or infrastructure settings before preserving a baseline.
- Do not treat one successful test as proof for retries, alternate clients, background work, or mixed-version fleets.
- Do not paste secrets, personal data, complete production payloads, or customer files into tickets or screenshots.
- Do not close the test until the final user-visible state and the server-side evidence agree.
Questions teams ask during testing
Can the app rely on the browser storage estimate?
Use it as an early warning, not a guarantee. Every write and final apply still needs explicit failure handling.
Should the old catalog be deleted before sync?
No. Keep it active until a complete staged catalog passes validation and the active pointer can change atomically.
When HandL WP should help
Bring in HandL WP when a production checkout, form, email, media pipeline, code-quality gate, or paid lead workflow is at risk. We can preserve evidence, isolate the failing layer, make the smallest corrective change, and verify the result across WordPress, connected services, logs, and the user journey.
If this is active on a production site, test WooCommerce POS catalog recovery.
Related HandL WP guides
Use these related guides when the same issue touches tracking, security, checkout, or crawler visibility.
Helpful references