AZF9555E ALTUSER may only set REGSTATE to OPEN

Explanation

The AZFYUBI factor data for a user is generated from the .csv data for the YubiKey token, and you cannot change it.

User response

If you need to change the confirmed AZFYUBI1 factor data for a user, set the REGSTATE to open and have the user re-enroll their YubiKey.