Copying Account Group
One account group has been created by copying a particular Account group in the SAP system.
how can one know that from which account group it has been copied.
It is not possible to know the actual acct group from which the new one is copied. Similar field status alone cannot guarantee that, as a newly created acct group can also have the same /almost same account group as one of the existing acct groups. Also, the field statuses will always be different across account groups as multiple account groups with exact field status is not required.
However if you want to change the configuration in the account group, you can always do it.
Hope it helps