Amazon error 4000002: A value for the attribute is required
What does it mean?
The attribute is required for this product type. It often appears after Amazon changes the requirements for a product type and an attribute becomes mandatory.
How to fix it
Refresh the product type definition and supply the newly required value.
Where do you fix it?
- In your product data (your source)
- In your feed tool: mapping, rule or channel setting
- 8058Required attributes are missing for the SKU
- 99001A value is required for this field
- 99010A required value is missing from a group of fields
- 99006A value is required because dependent fields are filled
- 99013A primary field is empty while dependent fields have values
- 99019A valid value is required in one of two fields
- 99003A required value is missing for the variation theme
- 18448Required attributes are incomplete
Source
Summarised in our own words; Amazon's page is leading.