New Market Participants have an auto created default Asset Owner (AO) added to their account with the naming convention equal to their NERC Entity Code’. And MPs can create additional AOs as needed.
The naming convention for creating a NEW AO : “ABBREV NAME” must be no longer than 15 characters and cannot include any special characters except an underscore “_”; “. AO LEGAL NAME” must be no longer than 30 characters and can only allow special characters dot “.”, dash “-“, underscore “_”, comma “,”, square brackets “[]”, and forward slash “/”. “MP ABBREV NAME” is simply their Entity Code. Important note – “AO ABBREV NAME” and “AO LEGAL NAME” cannot be identical.
Reference: Master Commercial Model Data Template