Amazon says flavor variations should not continue sharing reviews once the updated variation-review-sharing rollout reaches the relevant category. In a Seller Forums reply, Amazon community manager Ana said flavor, ingredients, and formulation fall under the more significant-difference side of the policy, not the minor-difference side.
What does Amazon say still shares reviews?
In its original announcement, Amazon says reviews will still be shared across variations with minor differences that do not affect functionality, such as color, pattern, some size changes, pack quantity, certain secondary scents, and model fitments.
Flavor is not on that list.
What did Amazon say specifically about flavor variations?
In the Ana_Amazon reply, Amazon said flavor, ingredients, and formulation differences should be treated as significant differences under the new review-sharing policy.
That is the clearest seller-facing clarification in the sources provided. It ties flavor changes to the side of the policy where reviews are no longer shared across variations.
When does that change take effect?
Amazon says in the original announcement that the rollout began on February 12, 2026 and continues by category through May 31, 2026.
Amazon also says sellers should receive notice before the change affects their products.
Does this answer what happens to Vine reviews after a later merge?
Not cleanly. The Ana_Amazon reply clarifies review sharing across flavor variations, but it does not fully answer the narrower question of whether Vine reviews collected on a standalone ASIN would remain after a later merge.
That is a different question, and Amazon’s public explanation in this thread does not resolve it directly.