Hi,
The controller configs on AirWave will be under 'Config' tab for the spoecific device.
1. Yes, everytime the config is changed on the MM and saved, the same will be updated in Airwave on the day but at the audit time (which is dailiy). So, if previous audit happend at 3:20 PM, there's a config change on the controller at 9:20 PM same day. The new config will be backed by AirWave next day at 3:20 PM. As the Audit for devices is daily by default.
2. These Archived configs saved per device in AMP are part of Nightly backup. For above scenraio, if the nightly backup happens before the daily audit and post the config changes, the new config may not be archived on AMP, yet.
Also, please be aware these archived configs in AirWave are 'show running config' from MM and MD's, this will not have the full node heirarchy config.