# Inventory sync investigation checklist

Use one row of evidence per variant and location. Remove customer data and credentials before sharing with an app provider.

## Identify the mismatch

- Date and time zone:
- Person responsible:
- Shopify variant identifier:
- SKU:
- Source item identifier:
- App and connection:
- Source location and Shopify location:
- Matching rule used by the app:
- Source quantity label, value, and observation time:
- Shopify quantity label, value, and observation time:
- Customer destination affected, if relevant:
- Expected sync schedule and last successful sync:
- Recorded error or run identifier:

## Investigate

- [ ] Confirm identifier and variant mapping.
- [ ] Check tracking and the destination location.
- [ ] Compare equivalent quantity states.
- [ ] Review sync logs and Shopify adjustment history.
- [ ] Identify all writers and legitimate stock movements.

## Correct and verify

- Confirmed cause:
- Scoped correction and authorized test environment:
- Starting values:
- Known change through the source system:
- Expected and observed result at Shopify:
- Availability at the affected destination:
- Following sync result:
- Duplicate/retry handling confirmed by provider:
- Evidence references:
- Follow-up owner:
- [ ] Expand only after the scoped test succeeds.