FormattingError Code Solution
How to Fix Shopify CSV Error: Barcode / GTIN Missing Leading Zeros
Excel often strips leading zeros from UPC (12 digits) and EAN (13 digits) barcodes, reducing them to 11 or 12 digits.
Exact Shopify Importer Exception:
Barcode is not a valid GTIN / leading zeros removed by spreadsheet editor
Root Cause Analysis
Spreadsheet software parses long GTIN numbers as integers, stripping leading "0" characters.
Manual Resolution Steps
- 1Format the barcode column as Text instead of General/Number.
- 2Add back leading zeros to restore 12-digit UPC or 13-digit EAN GTIN standards.
Example Broken Payload Triggering This Error:
{
"Handle": "wireless-headphones",
"Title": "Wireless ANC Headphones",
"Variant Barcode": "12345678901"
}Automate This Fix in Your Browser
Shopify CSV Doctor automatically detects and repairs Barcode / GTIN Missing Leading Zeros line items client-side without manual spreadsheet editing.