12.5.3 MTn98 Proprietary Message
This message type is used by financial institutions, with their own offices, with other financial institutions and/or with corporate customers with which they have established bilateral agreements.
It is used as an envelope for a specified message included in it. It allows for the definition of a unique format for which another message type is not available or applicable.
Note:
This message may only be sent and received after prior arrangements between the Sender and the Receiver.Format Specifications
| Field Tag | Field Name | Format | Mandatory/ Optional |
|---|---|---|---|
| 20 | Transaction Reference Number | 16x | M |
| 12 | Sub-Message Type | 16x | M |
| 77E | Proprietary Message |
73z(Text) |
M |
Parent topic: Common Group Messages