How to Fix Shopify CSV Error: Variant Default Title Already Exists

Occurs when a product is treated as a multi-variant item but still retains "Default Title" in Option1 Value across multiple rows.

Exact Shopify Importer Exception:

Validation failed: The variant "Default Title" already exists

Root Cause Analysis

Multiple variant rows under the same handle all specify "Default Title" or lack distinct option dimensions.

Manual Resolution Steps

1If the product has variants, specify real option values (e.g., Small, Medium).
2If it is a single variant product, ensure it has only 1 row.

Example Broken Payload Triggering This Error:

{
  "Handle": "ceramic-mug",
  "Title": "Ceramic Coffee Mug",
  "Option1 Name": "Title",
  "Option1 Value": "Default Title",
  "Variant SKU": "MUG-01"
}

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