Bank Key for Brazil .

I am working on Upgrade project to ECC 6.0 we have a 8 Digit Bank key (SAY 12340001) . Which is used, Now SAP has created following validation for BANK number for Brazil. That My 5th Digit should not be 0. So it's throwing Error. How Can to handel this?

• Validates a Brazilian bank number

• The bank number has 3 parts: BBBCAAAA

• BBB = Bank

• C = Code (Branch)

• AAAA = Agencia (1 to 4 digits, no leading zeros!)

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• This algorithm verifies that the agency number has no leading zeros

(According to this bank key should not have 0 as a fifth digit.)