Resolution

To identity Org codes sharing the same segments:

Financials > General Ledger Menu > Set Up/Chart of Accounts > Chart of Account Segments

If identical segments exist for another Org code, and that Org code does not have transactions, objects or other dependencies associated with it, the Org can be deleted ***in a non-Live environment first, before proceeding in Live*** and the issue should be resolved
Other options to correct are to [possibly merge the 2 accounts ***in a non-Live environment first, before proceeding in Live*** and the issue should be resolved
If there are dependencies, contact Support
The root cause should be determined

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