Do not use the live store as the first parser.
A CSV that opens in Excel can still be structurally wrong for an import pipeline. The preflight validates the supplied file without needing Shopify credentials or writing anything to the store.
SHOPIFY CSV · IMPORT ERRORS
Catch obvious Shopify CSV blockers before the import screen catches them for you.
Encoding, malformed rows, duplicate headers and structural problems are easier to fix before a live import attempt. The preflight reads the file and returns a narrow READY or NEEDS FIXES / REVIEW verdict.
ShadowOrders product: Shopify CSV Preflight. This page describes one specific use case; the technical boundary is the same as the underlying product.
Upload the CSV for a free verdict
READY means no payment is required. If findings exist, a $1 detailed report can be unlocked; the report route remains closed until Stripe confirms payment.
What this does not claim.
This check does not guarantee Shopify will accept every row and does not perform the import.
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