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critical INVALID_TAX_CODE

Invalid or Missing Walmart Tax Code

What this means

The tax code you submitted is not a valid Walmart Tax Code (WTC). Items without valid tax codes cannot publish because Walmart cannot collect sales tax.

Why this happens

Walmart uses its own tax taxonomy (WTCs), not Avalara or generic codes. Each item must reference a WTC that maps to the correct sales tax category for every state. Common failures: using Avalara codes by mistake, leaving the field blank, or using a deprecated WTC from an older spec version.

How to fix it

  1. Download the latest WTC list from Seller Center
  2. Map each product type to the appropriate WTC
  3. Update your feed with the new WTC values
  4. Default to 2038710 (general taxable) when uncertain, then refine
  5. Resubmit and verify in the item detail page

Common pitfalls