{max_users, Number}
This option defines at the service level, the maximum number of users allowed per room. It can be lowered in each room configuration but cannot be increased in individual room configuration. The default value is 200.
Thanks, did this work setAnswer(muc#roomconfig_maxusers, Arrays.asList(“10000”)) in smack after you increased the default value? We’re setting it to 60 and its not being honored.