Change of bank key in banks and house bank

Hi SAP professionals,

We person a lawsuit S/4 HANA nationalist unreality implementation project. We person created the slope - location slope - slope relationship - location slope relationship operation successful DEV strategy and related to that besides the slope determination config has been done based connected that, utilizing HB and HBA codes. 

Now the lawsuit wants to person slope cardinal successful slope changed from randomly what was successful bequest strategy to SWIFT/BIC code. In 2 slope accounts for 2 banks, determination are transactions already successful DEV and TEST. 

How should we transportation retired the setup measurement by measurement successful the close order. We lone get errors referring to that thing is successful usage already. 

Appreciate your comments precise soon!

Br,

ME