ACX, Audible's creator submission platform, uses automated systems to screen uploaded audio files for technical compliance and to monitor creator accounts for policy violations — including detecting duplicate accounts across Amazon services. Files that don't pass automated checks cannot be submitted.

ACX's published guidelines describe cross-platform account monitoring: if a creator opens a duplicate account to circumvent rules, all related accounts are disabled, and standing is verified across Amazon services including KDP and the Amazon Associates program. Audio submissions go through automated technical verification before reaching a human quality control reviewer. The extent to which the account monitoring system uses machine learning versus rule-based logic is not publicly confirmed; Amazon's broader platform infrastructure likely underlies the cross-platform detection capability. This is a combination of rule-based automation and platform-level AI applied to the ACX creator community.