User Documentation

MMI Finality Through Optimization Technical Formats and ISO 15022 Messages

The following is the full list of proprietary formats and ISO 15022 messages that are impacted by the MMI Finality Through Optimization initiative. These layouts include changes to existing messages and new messages being introduced by MMI Finality. The formats are listed under each part of the MMI submission, funding, and optimization process that they would be used in. Input refers to files or messages clients send to DTC and output refers to files or messages sent from DTC to clients.

Clients will want to subscribe to new messages.

Please direct questions to your Relationship Manager.

Input to DTC

Proprietary

• DOI 1&5 (05.24) 
• DOX1&5 and NDO1&5 (05.09) 
• DAYDOS and NDO via CF2 (05.02) 

ISO Messages

• ISO DO Input (MT542 and MT543)
  (Note: There are no changes to the existing ISO DO input messages.)

Output From DTC

Proprietary

• MQ Deliver Order Output (20.01) 
• MQ DO Output MMI Start of Day Acronym Status (20.19)

ISO Messages

• MT598 - Acronym Status Proprietary Message

Input to DTC

Proprietary

• MQ Input and Output for MMI Funding Messages (20.17 )

ISO Messages

• MT530 – Transaction Commands for MMI Finality 

Output From DTC

Proprietary

• MQ Deliver Order Output (20.01) 
• MQ DO Output MMI Start of Day Acronym Status (20.19)
• MQ Input and Output for MMI Funding Messages (20.17)

ISO Messages

• MT548 - IPA Participant Confirmation
• MT598 - Acronym Status Proprietary Message

Output From DTC

Proprietary

• MQ Deliver Order Output (20.01)
• RAD Drop Output DO and Pledge (20.05) 
• DTFPART (05.11) 

ISO Messages

• MT598 - Acronym Status Proprietary Message
• MT548 - Long Version for MMI Optimization Participant Status 
• MT548 – Long Version Accounting for MMI Optimization Participant Status 
• MT548 – Short Version for MMI Optimization Participant Status