Amazon error 99001: Category-specific data failed validationOne or more category-specific attributes (the columns unique to that template) did not pass the category's own validation rules - a required combination is incomplete, or two attributes contradict each other.How to fix error 99001

Read the full processing report; this error usually names the offending attribute in the message text.

Check the Data Definitions tab for that attribute's dependency rules - some fields are only valid together.

Remove optional category attributes you are unsure about and re-upload with a minimal row, then add fields back a few at a time.

Confirm you are on the current template version - Amazon retires attributes without warning.

All Amazon flat-file error codes