UPC to GS1 change

Fix your barcodes before Amazon suppresses the listing

Amazon checks UPCs against the GS1 database. Codes bought from resellers fail that check and increasingly lead to suppression and Brand Registry denials. We swap the identifier on the same ASIN so reviews, rank and inventory carry over.

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Product identifier update on a mobile listing
Why it matters

The risks of non-GS1 codes

Suppression

Listings with identifiers that do not match the GS1 record can be suppressed without warning.

Brand Registry denials

Mismatched barcodes are a common reason brand applications and brand changes are refused.

Catalog conflicts

Reused codes can attach your ASIN to another seller's product data or let others attach to yours.

Process

Same ASIN, new identifier

01

Verify

We confirm the new GS1 code is registered to your company and matches the product data.

02

Submit

The identifier change is requested with the GS1 certificate and product evidence.

03

Merge

Amazon updates the ASIN in place. Reviews, rank and inventory are retained.

04

Label guidance

We advise on updating printed barcodes at the next production run and on labelling existing stock.

Pricing

Per ASIN, per marketplace

Prices are placeholders mirroring the reference structure. Final AiHello pricing is confirmed before work begins.

FAQ

Frequently asked questions

How long does the change take?

Most cases complete within three to four weeks. Amazon's review can occasionally stretch longer, and we follow up until it is done.

Will my listing go down?

Normally no. In rare cases there is a short period of downtime while the identifier updates, usually under 24 hours, and ProductPulse pauses ads if the SKU cannot sell.

Do I lose reviews or inventory?

No. The change is made to the existing ASIN, so reviews, rank, FBA inventory and advertising all continue.

Do I need to relabel my stock?

If your FBA stock uses the Amazon FNSKU label, nothing changes. Printed UPCs on packaging should be updated at the next production run.

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Why AiHello

Software and experts, not one or the other

Most agencies sell hours. Most tools sell dashboards. AiHello pairs a dedicated specialist with AutoPilot, the automation engine that makes thousands of bid, budget and keyword decisions every night, so the humans on your account spend their time on strategy instead of spreadsheets. Across our managed accounts that model has lifted sales by about 20% while bringing ACoS down by about 30% over time.

  • A named specialist who knows your catalog, margins and goals, with a call every two weeks
  • AutoPilot handles bids, budgets, keywords, negatives and inventory-aware pausing 24/7
  • A visual change log shows every adjustment with a timestamp and a reason
  • Month to month, no long contracts: we earn the renewal with results
See how AutoPilot works

Ready to grow on Amazon?

Talk to an AiHello expert about your goals. We will map the fastest route and show you what AutoPilot can automate from night one.