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## 8 External DDA System

This topic provides the information about the External DDA System.

The transactions into a virtual account through transaction journal service results in posting entries to the real account. The External Demand Deposit Accounts (DDA) system interacts with the external DDA for posting entries and calling out other services on DDA. Oracle® Banking Virtual Account Management can be configured to work with the DDA systems in a synchronous or asynchronous manner for transaction posting to the real account.

This topic contains the following subtopics:

- Create External DDA System
  This topic describes the systematic instructions to configure an external DDA system.
- View External DDA System
  This topic describes the systematic instructions to view the list of configured external DDA system.