Book package document is missing required schema:accessMode metadata tags.
PreFlight inspects your book's content profile and automatically synthesizes and injects complete, legally compliant schema:accessMode metadata.
The European Accessibility Act (EAA) legally requires commercial eBooks sold in EU territories to declare their sensory access modes (textual, visual, auditory) so readers know if the book is accessible before purchasing.
Retailers distributing in Germany, France, Italy, Spain, and all EU member states (including Apple Books EU, Tolino, and Kobo) face regulatory fines if they distribute non-compliant titles.
Technical Specification: Requires <meta property="schema:accessMode"> nodes within the <metadata> section of content.opf, specifying 'textual', 'visual', etc., conforming to EPUB Accessibility 1.1.