How to Fix Error 8103: Invalid Product Type in Amazon Seller Central
Error 8103 blocks SKUs when the product‑type string isn’t in Amazon’s catalog. Using the Product Type Catalog (Catalog → Add Products) to copy the exact uppercase value—e.g., OFFFICE_PRODUCTS—prevents the rejection, even for bulk uploads of thousands of items.
Overview
Sellers encounter error 8103 when a feed contains a product‑type value that Amazon does not recognize. The issue appears during the feed‑processing stage and blocks the affected SKUs from going live. Fixing the error quickly is essential to keep inventory listings active and sales flowing.
Key Points
- Invalid product‑type string — The error fires when the submitted value does not exist in Amazon’s current product‑type catalog.
- Exact formatting required — Capital letters, underscores, and no spaces are mandatory; “HOME_FURNITURE” is accepted, but “home furniture” is not.
- Marketplace‑specific types — Some product types are only valid in certain regions; a type that works in .com may be rejected in .ca.
- No free‑form entry — Amazon advises pulling the value directly from the drop‑down list or flat‑file template rather than typing it manually.
- Deprecation risk — Product types that were valid in older catalogs may have been retired, causing legacy feeds to fail.
- Impact on bulk uploads — Each rejected line adds to processing time, especially for sellers uploading thousands of SKUs at once.
How to Fix Error 8103
- Locate the offending SKU — Open the feed processing summary, find the row that lists “Invalid product type” and note the exact string Amazon rejected (e.g., “office‑products”).
- Access the official catalog — In Seller Central, go to Catalog → Add Products and click Product Type Catalog; use the search bar to locate the correct entry for the product’s category.
- Select the approved value — Choose the product‑type directly from the list, such as OFFICE_PRODUCTS, and copy it without alteration.
- Update the feed file — Replace the incorrect string in the original spreadsheet or XML file with the copied value, ensuring the cell retains the exact uppercase and underscore format.
Analysis & Recommendations
Why This Matters
Each rejected line adds processing time, so a batch of 5,000 SKUs can be delayed by hours. Resolving 8103 restores listing velocity, keeps inventory active, and protects revenue.
Key Takeaways
- Error 8103 fires when the submitted product‑type string is not in Amazon’s current catalog.
- Product‑type values must be uppercase with underscores, e.g., OFFFICE_PRODUCTS, not free‑form text.
- Product types are marketplace‑specific; a type valid in .com may be rejected in .ca.
- Bulk uploads of thousands of SKUs can be significantly delayed by each 8103 rejection.
Recommended Actions
- →In Seller Central, navigate to Catalog → Add Products → Product Type Catalog, search for the correct type and copy the exact uppercase value.
- →Open your feed file (spreadsheet or XML) and replace the invalid string with the copied catalog value, preserving underscores and case.
- →Before resubmitting, run the “Check Your File” tool under Inventory → Add Products via Upload to confirm no 8103 warnings remain.
Comments
Join the discussion
Log in or create an account to share your thoughts on this update.
No comments yet. Be the first to share your thoughts!