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critical ERR_EXT_DATA_0801001

Conditional Attribute Missing

What this means

An attribute that is conditionally required (e.g., powerType when isPowered=Yes) is empty. Walmart's spec validates these dependent fields together.

Why this happens

Walmart Seller Center's product schema has format and value rules per attribute. This issue is typically: missing a required attribute for the category, an invalid enum value (e.g., 'XL' submitted where 'M, L, XL' is the valid set), out-of-range numbers, or attributes that conflict across the feed.

How to fix it

  1. Look up the affected attribute in Walmart Seller Center's product data spec.
  2. Check whether the attribute is REQUIRED vs RECOMMENDED for your product category.
  3. For enum-style attributes (gender, age_group, condition), use ONLY documented values exactly (case-sensitive).
  4. For free-text attributes, stay within the character limit and avoid promotional language.
  5. Re-submit and check the next processing cycle.

Common pitfalls