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Open Message Format (OMF)

Message categories

  • Last UpdatedFeb 28, 2026
  • 1 minute read

Open Message Format (OMF) messages fall into three categories:

  • Type

  • Container

  • Data

Within each category, three types of actions can be specified:

  • Create

  • Update

  • Delete

Each message bulks individual JSON objects into a JSON array. Within a given array, all objects must be of the same message type: Type, Container, or Data.

To achieve optimal throughput, bulking and compression of messages is recommended.