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critical MISSING_ATTRIBUTE_METADATA

Missing Attribute Metadata in Template

What this means

Spec template's hidden header rows (1-6) were modified or stripped, so Walmart can't map columns to attribute metadata. Always download a fresh spec.

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