Update existing bank accounts details to newly create Site in new BU

Summary:

We are not update bank account details. We are only required existing bank details use/assined for new created site in newly create Bu i.e. LDC BU.

For example:

Existing Site: ABC for Supplier: XX in BU LTC BU and Bank details also created for existing supplier site

But now We are create new BU i.e. LDC BU the We are create new site XYZ for Supplier : XX in BU : LDC BU

We are unable to existing Bank Accounts details use/Assigned to newly create Site i.e. XYZ for BU i.e.LDC BU

So please suggests how to supplier existing bank accounts details assigned to newly create site in new BU.