Account Symbols and Account Assignment 

The account symbol is defined by the user during Customizing. It specifies which G/L account is posted to. You create the prerequisites for this when creating your house banks. Here you maintain the bank details and the accounts that you have at your house bank. You must create a G/L account in your system for each of these accounts. You enter a currency key in the master records of each of these G/L accounts. The currency key must be the same as the currency in which you run the respective account at your house bank.

Maintain your house banks in Customizing for Bank Accounting under Bank Accounts ® Define House Banks.

When specifying bank account data in the house bank table on your accounts at your house bank, you must create a G/L account for each account. If you fail to do this, the system cannot make any postings when it receives the electronic account statement.

How can you be certain that specifying a certain account symbol leads to the G/L account you specified when maintaining your house bank accounts being posted to? The SAP system ensures that the correct account is posted to by replacing this account symbol with the appropriate account at the time of posting.