Overview

Error 90252 is a listing validation error that Amazon sellers may encounter when creating or updating product listings in Seller Central. This error occurs when two product attributes conflict with each other — specifically, when one attribute is included in a listing that shouldn't be present given the value of another attribute. Understanding how to diagnose and fix this error can help sellers avoid listing delays and keep their catalog running smoothly.

Key Points / What Sellers Need to Know

• Conditional attribute conflict — Error 90252 fires when a product attribute is provided that contradicts or is incompatible with the value set for a related attribute. Amazon's catalog system enforces these rules to maintain data consistency.
• Dynamic error message — The error message will identify the specific attributes involved, following the pattern: "Attribute [X] should not be specified when [Y] is [value]." Pay close attention to the attribute names Amazon references.
• Common during bulk uploads — This error frequently appears during flat file or feed-based listing submissions, where template fields may be filled in without accounting for conditional logic between attributes.
• Category-specific rules — Different product categories have different attribute dependencies. An attribute combination that works in one category may trigger Error 90252 in another.

How This Error Works

Amazon's product catalog enforces a set of validation rules that govern which attributes can coexist on a listing. Some attributes are conditionally required or conditionally prohibited based on the values of other fields. For example, if a seller sets a product's variation type to "Parentage: Parent," certain child-level attributes like size or color values should not be specified on that same listing. When the system detects that a prohibited attribute has been included alongside a conflicting value in another field, it returns Error 90252 and blocks the listing update from going through.

How to Fix Error 90252

The first step in resolving this error is to carefully read the full error message, which will name both the offending attribute and the attribute-value pair that triggered the conflict. Sellers should then open their listing file or feed and locate the row causing the issue. Remove or clear the attribute that Amazon says should not be specified, then resubmit the listing. If working through Seller Central's Add a Product interface, check whether a dropdown selection or checkbox is auto-populating a field that conflicts with another setting. In cases where the correct combination of attributes is unclear, download a fresh category-specific flat file template from Seller Central, as these templates include data validation rules and notes that indicate which fields are conditional.