Segmentation and Recovery

An order data request cannot exceed 1 MB or else it will be separated into segments. These segments may need to be recovered if an error occurs during their delivery.

The order data request (upload or download) cannot exceed 1 MB in compressed, encrypted, base64 encoded form. If the order data request exceeds 1 MB, the encoded form must be separated into segments. EBICS Banking Server is responsible for combining all these segments in order to reinstate the order data to its original form.

If an error occurs during the delivery of the order data segments, recovery can be performed. The user can download or upload the appropriate segment according to the recovery point sent in response by the server.

Recovery allows the transmission of an order to continue despite the occurrence of an error, without necessitating the retransmission of all order data segments that have been transmitted successfully.

A recovery point can be used to continue transactions from the transaction step that follows this recovery point in the transaction step sequence. Recovery points must be set during the recovery process:

For upload transactions, the recovery point is the last transaction step wherein the bank has successfully received the request message and transmitted a response to the user. The recovery point is determined by the state of the transaction in the bank system.
For download transactions, several recovery points may exist. All the previous transaction steps of the transaction wherein the bank has successfully received the request message and transmitted a response to the user.