Fix common migration validation errors
Resolve CSV issues before running your production migration.
Quick answer
The validation report lists row numbers and fields to correct — fix the file and re-upload.
Frequent errors
- Invalid date format — use ISO dates (YYYY-MM-DD).
- Unknown store name — create the store first or fix the reference column.
- Negative balance — balances must be zero or positive.
- Duplicate card code — each code may appear only once per migration file.
Steps
- Download the error report after validation.
- Correct the source spreadsheet.
- Re-upload until validation passes with zero blocking errors.
- Keep a backup of the final file for audit purposes.
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