Bulk update of supplier bank account currency code

Summary:

Is there a workaround or alternative options available for performing a mass update to remove the currency code from the supplier's bank account?

Content (please ensure you mask any confidential information):

When the currency code is assigned to supplier's bank account and the "Allow INternational Payment" flag is enabled, the bank account is not defaulted to the supplier AP invoice when the invoice currency is different from the currency configured in supplier's bank account. Hence We would like to update thousands of supplier bank accounts to remove currency code assigned to them.

We tried to pass the #NULL value in the currency code in the FBDI template for the supplier bank account to remove the currency code and recieved the below error message.