When Shopify purchase orders rely on linked transfers, the records can drift even when each screen looks reasonable on its own. A quantity changed on the PO may not match the transfer, and incoming stock may stay invisible until the transfer reaches the right status.

That creates a practical risk: a buyer sees no incoming quantity, assumes the order is missing, and places another order.

Here is a lightweight CSV cross-check I would run before receiving stock or making another purchasing decision.

1. Keep the source files separate

Do not overwrite the supplier sheet or the transfer import worksheet. Save an immutable copy of each, then create a review file.