We take the sample csv and add some coupons like this:

First line:
post_title,”ID”,”post_excerpt”,”post_status”,”post_date”,”post_author”,”discount_type”,”coupon_amount”,”individual_use”,”product_ids”,”exclude_product_ids”,”usage_count”,”usage_limit”,”usage_limit_per_user”,”limit_usage_to_x_items”,”expiry_date”,”free_shipping”,”exclude_sale_items”,”product_categories”,”exclude_product_categories”,”minimum_amount”,”maximum_amount”,”customer_email”

second line:
9191112,”4374″,”Racesports Race-Taxi Gutschein”,”publish”,”2018-01-16 11:13:48″,”1″,”percent”,”100″,”no”,””,””,”0″,”1″,”1″,”1″,”2021-03-01″,”yes”,”no”,”279″,””,””,””,””

and after the import there is a coupon without anything….

what can be the problem here?