Sync stock between two Shopify stores. Syncsafe checks every change before writing, and records anything it refuses along with the reason it refused.

• Every stock change is checked before anything is written to the other store
• Refuses writes that would zero or wreck your stock, and tells you why
• Matches variants by SKU, and flags duplicates instead of guessing
• A permanent record of every stock change and why it was or was not written
• Fix a mapping and resync — nothing is lost while it is blocked