Program - Inherit Segment Value Attributes

The Segment Value Inheritance program automatically propagates the attributes of a segment value to all account combinations that contain that segment value.
To protect account combinations from changes when you run the Segment Value Inheritance program, check the Preserve check box in the GL Accounts window. You can assign attributes at two levels:

• The individual segment value in the Segment Values window.
• The account combination in the GL Accounts window.

For example, you can disable the 200 cost center segment in the Segment Values window, but retain existing account combinations using cost center 200 by marking the Preserve check box for each combination in the GL Accounts window. Then, when you run the Segment Value Inheritance program, all account combinations that contain the 200 cost center will be disabled except for those you preserved and no new combinations will be created during data entry.
You can view the account code combinations that have been changed in either the GL Accounts window or the Segment Value Inheritance Execution Report.
Warning: Individual segment value attributes override account combination attributes.

Source: http://www.oracleug.com/user-guide/general-ledger/segment-value-inheritance