When we have a Fiscal Year Variant, we could assign it to our Company Code. You are able to assign one Fiscal Year Variant to as many Company Codes as you like. This is one of the prerequisites to have uniform Controlling Area assigned to several company codes.
IMG Path: Financial Accounting (New) -> Financial Accounting Basic Settings (New) -> Ledgers -> Fiscal Year and Posting Periods -> Assign Company Code to a Fiscal Year Variant
When you open the transaction, you should scroll to your company code and choose the desired Fiscal Year Variant.