Shopify invalid CSV header: find the mismatch
Shopify product imports can fail when a header is misspelled, uses a legacy alias, or belongs to a different export type. A product file should include fields such as Handle and Title.
What the preflight checks
- Shopify product schema and required fields
- Known header aliases
- Delimiter, encoding, quoting, and row width
Start with the free preflight. If the issue is deterministic and safe, the $29 package returns a corrected CSV plus a precise change report.