Overview

Amazon returns error 99005 when a product feed omits values in any required attribute column. The issue surfaces during the processing of inventory uploads and can halt the creation or update of listings. Sellers must understand Amazon’s grouped‑attribute logic to correct the error quickly and keep their catalog live.

Key Points

• All required fields must be filled — If a column is marked required in the flat file, every row must contain a valid entry; otherwise the feed is rejected.
• Grouped attributes follow an all‑or‑nothing rule — Attributes that belong to the same logical group (e.g., size, color, variation theme) must all be present; a single blank triggers the entire group’s removal.
• Incomplete groups are discarded entirely — Amazon does not apply the filled‑in values of a partially completed group; the whole set is ignored, leading to missing product details.
• Feed must be resubmitted after correction — Once the missing data are added, the entire file needs to be uploaded again for the changes to take effect.
• Error 99005 is one of the most frequent feed rejections — Its prevalence stems from manual spreadsheet edits and outdated template usage.
• Testing a small batch can prevent large‑scale failures — Submitting a handful of SKUs first helps catch grouped‑attribute gaps before a full catalog upload.

How Grouped Attributes Work

1. Identify attribute groups — Amazon clusters related fields into a single group; for example, the “Variation” group includes size, color, and variation theme. If a seller lists a shirt, all three fields must be supplied for the variation to be recognized.
2. Validate each group as a unit — During feed processing, Amazon checks every group. When every attribute in the group contains a valid value (e.g., size = “M”, color = “Blue”, variation theme = “SizeColor”), the group is accepted and applied to the listing.
3. Reject the group if any attribute is missing or invalid — If even one attribute is empty or contains an error (e.g., size = “M”, color = blank, variation theme = “SizeColor”), Amazon discards the entire group. The feed then generates error 99005, and none of the supplied values for that group appear on the product page.