Offer list or full product catalog?
A file containing only SKUs, prices, and quantities is often suited to a standard import. Category data with descriptions, images, technical fields, and parent-child links can require additional preparation.
What the free preflight checks
The check focuses on seller-fulfilled DEFAULT products, available manufacturer and brand values, descriptions, image references, and identifiable variation relationships. FBA listings are excluded from content completeness scoring.
No invented product data
WDEPOS organizes available source values; missing images, text, or manufacturer information cannot be generated from an empty export.
Recommended sequence
Check the file, review relationships and content quality, prepare import files, test with JTL-Ameise, then carefully verify the first Amazon synchronization.