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Fix Shopify CSV invalid weight errors
Weight fields can fail when values contain units, text, or mismatched weight-unit combinations.
Why Shopify throws this error
Weight columns are parsed as numeric values with separate unit fields. Mixed-format input can break import normalization.
Common causes
- - Weight value includes text like '2 kg' in numeric column.
- - Weight unit not aligned to expected unit codes.
- - Decimal formatting uses locale-specific commas.
- - Negative or blank weights on shippable products.
CSV example that fails
Handle,Variant Grams
classic-tee,2 kg
Corrected CSV example
Handle,Variant Grams
classic-tee,2000
Manual fix steps
- 1. Convert weight to the expected numeric field format.
- 2. Keep units in dedicated unit fields only.
- 3. Normalize decimals to dot-separated format.
- 4. Spot-check shipping profiles after import.
RowReady-assisted fix path
- 1. Run validation and filter weight parsing issues.
- 2. Apply unit-safe numeric corrections.
- 3. Export clean file and recheck before upload.
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