Clip from DIY School Hearing Aids (v2.2) PDF File named (02 How to Program your Hearing Aids);
Step 4 – Save your Original Professional Settings (if any)
An important feature for keeping track of changes to your hearing aid settings/HA settings is the concept of keeping your database settings an exact match to your HA settings! Normally, you can proceed without getting a (Settings Mismatch Warning) because your HA settings have a DateTimestamp that matches the DateTimestamp of the last database session. Caveat; You are allowed to bypass this matching DateTimestamp requirement when this is the first time connecting your HAs (with a new database client) because your new database client is empty.