Overview

Amazon’s Seller Central platform flags issues with numeric error codes whenever a listing, inventory update, or account action fails. The MYO‑series codes appear most often during product‑creation and catalog‑maintenance tasks, and understanding them helps sellers avoid costly delays.

Key Points

• MYO codes target catalog actions — They surface when you add, edit, or bulk‑upload products through tools such as “Add a Product” or inventory feeds.
• Numeric suffix identifies the problem — A code like MYO0000 points to one specific validation rule, while MYO1000 signals a different issue, making it easier to reference in support tickets.
• Most issues are fixable in the UI — Adjusting missing attributes, correcting barcode formats, or aligning with category guidelines usually clears the error without external help.
• Repeated failures may need a case — If the same code reappears after you’ve verified the data, opening a support case and quoting the exact code speeds up specialist routing.
• Keeping a personal error log pays off — Documenting each MYO code you encounter, the root cause, and the fix creates a reusable knowledge base for future listings.

How MYO Error Codes Work

1. System validation triggers — When you submit a product entry, Amazon’s backend runs a checklist; for example, entering a new ASIN without a brand name generates MYO0002.
2. Error code is displayed — The dashboard or feed‑processing report shows the code alongside a brief description, such as “Missing required attribute: brand.”
3. Seller reviews the message — You click the link or hover over the description to see which field failed; in a bulk upload, the error appears on the specific row.
4. Data correction is applied — Updating the missing brand field in the product detail page or fixing the CSV column resolves the issue; the same step clears MYO0002 for that SKU.
5. Resubmission initiates re‑validation — After saving changes, the system re‑checks the listing; a successful pass removes the error, while a new code (e.g., MYO1001 for an invalid UPC) may appear if another rule is violated.