Amazon error 8542: Attribute is not valid for the product type you choseYou filled in a column that does not apply to the selected feed_product_type. Flat-file templates share one spreadsheet across many product types, so a column can exist in the file yet be meaningless for your item.How to fix error 8542

Note the attribute named in the error and clear that column for the affected rows.

Check the Data Definitions tab - it lists which attributes apply to which product types.

If the attribute really matters for your product, you probably picked the wrong feed_product_type; switch to the correct one.

Avoid hand-building templates by merging columns from two different category files - that is the usual source of this error.

All Amazon flat-file error codes