Fix Shopify “Options Are Not Unique” CSV Error

Shopify requires every variant inside a product to have a unique combination of option values. Repeating the product handle is normal; repeating the same option combination under that handle is not.

Quick answer

Group rows by Handle, then compare Option1 Value, Option2 Value, and Option3 Value. Remove or correct rows where the complete combination is duplicated. Do not flag the repeated handle by itself, because multiple variant rows for one product intentionally share the same handle.

What the error means

A product can have variants such as Size and Color, but each combination can appear only once. Two rows for Medium / Black under the same product handle collide even when their SKUs or prices differ.

shirt | Size: Medium | Color: Black

shirt | Size: Medium | Color: Black ← duplicate

Fix it step by step

1. Sort or filter by Handle

Keep all rows belonging to the same product together. Do not globally deduplicate handles; a product with several variants correctly repeats its handle.

2. Compare the complete option combination

Check the values across every option column used by that product. Medium / Black and Medium / Blue are unique; two Medium / Black rows are not.

3. Decide which row is correct

If one row is accidental, remove it. If the variants are genuinely different, change an option value so the distinction appears in the product's customer-facing options rather than only in SKU, barcode, price, or inventory.

4. Check blank option values

Multiple rows with the same handle and the same blank/default option values can also collide. Confirm that Option1 Name and Option1 Value are present where variant-dependent columns are used.

5. Be careful when reorganizing option columns

Changing Option1, Option2, or Option3 can recreate variant IDs and disrupt integrations that depend on those IDs. Test a small copy before overwriting an existing catalog.

6. Validate before re-importing

VariantSafe groups rows by handle and reports duplicate option combinations while allowing legitimate repeated handles.

What does not fix the problem

Changing only the SKU or barcode while leaving the same option combination.
Deleting every repeated handle.
Moving values between option columns without reviewing the entire product.
Assuming rows far apart in the CSV belong to different products when their handles match.

Check the repaired CSV before importing

VariantSafe reads the file locally in your browser and reports exact rows, columns, and safe automatic fixes.

Open the free CSV validator

How to fix “Validation failed: options are not unique”