Field help (BSISEABTC) 

This field is dedicated to search terms in the subdetail for CAMT.053/.054 transaction entries. It allows you to add bank transaction codes as a concatenated string. The value in the BTC reference field consists of concatenated values for Domain, Family, and Sub-family or the concatenated values for Code and Issuer when the Proprietary element is present in the bank transaction section of the statement.
Note: Bank transaction codes on C-level transactions in CAMT.053/.054 statements are currently not taken into account in the standard setup for element mapping and bank import segment definition.