Line 14 Relationship value must be either DIRECT or RESELLER. Your publisher ID and relationship fields may need to be switched, or you might be missing a comma.. Ad system domain brightmountainmedia.com is not a known exchange domain. Ensure the spelling is correct, check the partner documentation, or have the partner update the IAB Tech Lab normalization mappings: https://wiki.iabtechlab.com/index.php?title=Ads.txt_Normalization_Mappings