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I will bulk write shopify gtin barcode and sku into product CSV
About this Gig
EU product identifier rules tighten around Nov 1, 2026. Get GTIN and barcode fields ready in your Shopify CSV before the deadline.
Need GTIN, barcode, or SKU values bulk written into a Shopify product CSV? I update the identifier columns in your file so you can import without store access.
What I do:
- Write or normalize GTIN, barcode, and SKU fields on variant rows
- Check length and format patterns you specify
- Flag duplicate SKU or barcode values instead of hiding them
- Map identifiers from a source sheet into your product CSV
- Keep Handle and Variant structure intact so the import still works
How it works:
1. You send the product CSV and any source list of GTINs, barcodes, or SKUs
2. We agree match keys, such as SKU to GTIN or Handle plus option to barcode
3. Standard and Premium: small test rows first
4. I deliver the updated CSV plus a dupe and exception report
Every order includes:
- Updated product CSV
- Duplicate flag list for SKU or barcode clashes
- Exception list for unmatched rows
- Change log and 1 rerun (Premium)
Files only. No store login. I do not invent official GTINs you did not supply.
Message variant count and columns to fill before you order.
My Portfolio
FAQ
Do you need Shopify store access?
No. Attach your product CSV and any source identifier file. I return an updated CSV for you to import.
Can you create brand new GTINs for me?
I write values you supply or map from your source sheet. I do not invent official brand GTINs. If you need placeholder internal codes, say so clearly in the order.
What if two products share the same barcode?
Duplicates are flagged on a report. I do not silently overwrite one product to hide the clash unless you give a written rule.
Will this break my Option and Variant rows?
No. Identifier writes stay on the variant columns. Handle and Option structure are left intact unless you also ask for a separate import repair gig.
Do you cover EU product identifiers or customs compliance?
EU listings and customs workflows often need barcode or GTIN plus HS codes. I deliver CSV format checks, check digit style validation when you specify the rules, and fill missing identifier columns. This is file formatting only, not customs or compliance endorsement.
