Subscription25 gives you the option to use your own custom fields for the following data:
IBAN
BIC
SEPA Mandate Date
VAT Number
By using the following settings (see Available Custom Settings) you can specify your own field names which, on the moment of editing the field, will be copied to the corresponding Subscription25 fields.
CLIENT_BIC_FIELD
CLIENT_IBAN_FIELD
CLIENT_SEPA_MANDATE_DATE_FIELD
CLIENT_VAT_NUMBER_FIELD