Overview

Error 5463 appears in Seller Central when Amazon places a newly suggested ASIN under manual review before it can be published. The review is part of Amazon’s catalog‑integrity safeguards and can last up to seven business days. Sellers need to understand the timeline, why the hold occurs, and what actions can keep the process smooth.

Key Points

• Not a rejection — The error signals a pending manual check, not a denial of your ASIN.
• Seven‑day maximum — Amazon promises to finish the evaluation within seven business days and will email the outcome.
• Catalog safeguards trigger — The hold is activated when the listing contains attributes that require extra verification, such as ambiguous product matching or mandatory compliance data.
• No quick fix — Unlike typical listing errors, you cannot resolve Error 5463 by simply editing the feed; the decision rests with Amazon’s review team.
• Complete data reduces risk — Submitting fully accurate titles, identifiers, images, and category assignments lowers the chance of a manual review or a later rejection.

How the Manual Review Works

1. Submission flagged — When a seller creates a new ASIN, Amazon’s automated system scans the data. If the product’s UPC, description, or category closely resembles an existing listing, the system flags it for human review. Example: A seller lists a “Stainless Steel Travel Mug” that shares a UPC pattern with several existing mugs, prompting a flag.
2. Review queue entry — The flagged suggestion is placed in a review queue monitored by Amazon’s catalog integrity team. The team checks for duplicate listings, policy compliance, and correct attribute mapping. Example: An employee compares the new mug’s dimensions and branding against the catalog to confirm it is not a duplicate.
3. Decision communication — Within seven business days, the team either approves the ASIN, rejects it with corrective guidance, or requests additional information. The seller receives an email tied to the account’s primary address.