### EERP

Used to interpret the value of the ORIGINATOR and DESTINATOR fields contained in the EERP message, according to the protocol version.

The End to End ResPonse service generates a message called EERP. This message informs the file sender that the data sent arrived correctly.

The first version of the protocol (1986) specifies that:

• the ORIGINATOR protocol field corresponds to the file sender
• the DESTINATOR protocol field corresponds to the file receiver

The second version (1991) specifies that:

• the ORIGINATOR protocol field corresponds to the EERP sender (i.e. the file receiver)
• the DESTINATOR protocol field corresponds to the EERP receiver (i.e. the file sender)
 Note You must check the consistency of the customized values from one end to another. Indeed, if the sender and receiver have different versions, it is not possible to acknowledge the transfer.