| elf_transmission_KEY | int (4) | NOT NULL | Key for the Elf Transmission |
| elf_file_KEY | int (4) | NOT NULL | Key into the associated ELF File table for the current row |
| elf_transmission_status_KEY | int (4) | NOT NULL | The current transmission status |
| status_change_date | datetime (8, 3) | NOT NULL | The date that the status of the file has changed. |
| ack_data_xml | nvarchar (-1) | | The data from the acknowledgement file. |
| connect_event_id | bigint (8) | NOT NULL | The associated event id from Connect. This connect_event_id will be used to determine the chronological order of events when multiple events take place at the same time. |
| submission_id | nvarchar (-1) | NOT NULL | The submission id that corresponds to this transmission event. Not all events will have a submission id. This will be the empty string for events without a submission id. |