Amazon error 8105: A required attribute is missingA column that the chosen product type marks as mandatory is blank. Different product types require different attributes, so a template that worked for one category often fails in another.How to fix error 8105

Read the attribute name in the error text - the message names the exact column, for example item_name or standard_price.

Open the Data Definitions tab of the category template and filter for 'Required'.

Fill every required column; a space or a formula that resolves to blank still counts as empty.

Watch for Excel silently dropping columns when you copy rows between templates - always paste into the original template file.

Re-upload and confirm the processing report is clean before adding more rows.

All Amazon flat-file error codes