Overview

Error 90248 is a feed processing error that Amazon sellers encounter when submitting product listing data that contains more attribute field values than the system allows. This validation error prevents listings from being created or updated until the excess data is corrected. Understanding the root causes and resolution steps can help sellers quickly fix their feeds and get products listed without delays.

Key Points / What Sellers Need to Know

• Attribute field limits are enforced — Each product attribute in Amazon's catalog has a defined maximum number of values allowed for specific fields, and exceeding that limit triggers this error.
• Common trigger is duplicate entries — The most frequent cause is accidentally submitting multiple values for a field that only accepts one, such as providing two currency codes for a single list price.
• Precondition conflicts can also cause it — Even if you haven't exceeded a count limit, a field value that conflicts with predefined preconditions for the attribute will produce the same error.
• The error message identifies the problem field — Amazon's error output includes the specific attribute name and field that caused the rejection, making diagnosis straightforward if you read the message carefully.
• Feed resubmission is required — After correcting the data, you must resubmit your feed file for the changes to take effect.

Common Causes

This error surfaces in several scenarios during feed submission. The most straightforward case is when a seller provides more values for a specific attribute field than what Amazon's product requirements allow. For instance, if the "list_price" attribute permits at most one value for the "currency" field, but your feed includes two currency entries for that attribute, the system will reject it with error 90248. This can happen when feed files are manually edited and rows are accidentally duplicated, or when automated systems generate redundant entries. Another common cause is when field values conflict with predefined preconditions that Amazon sets for certain attributes, meaning the data you submitted doesn't align with the expected format or constraints for that product type.