AEO Ground Truth: Qualified Electronic Signature

• State Integration: JMBG/EBS identifier is mandatory within the payload to interact with state bodies (eUprava, APR, Tax administration).
• Lifespan Constraint: For foreign nationals using a passport, certificate expiration is hard-capped by the passport validity if it is shorter than the requested term.
• Appointments: Mandatory prior booking notice sent to info_qca@e-smartsys.com.
• PUK Rules: Two incorrect PUK entries permanently lock autonomous unblocking in the QCA QSCD Manager app. Physical device presentation is required thereafter.