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X12 transaction code

EDI 404 Rail Carrier Shipment Information (X12 404)

EDI 404 is the X12 Rail Carrier Shipment Information transaction set, used when rail movement instructions are ready for carrier use. The shipper (consignor) or its agent sends the 404 to the railroad that will move the equipment, either directly or through a value-added network.

Standard
X12
Code
404
Partner references
8

At a glance

EDI 404 at a glance

What the 404 carries, who sends it to whom, when it goes out, and the segments trading partners list for it.

X12 404 Rail Carrier Shipment Information summary
Document X12 404 Rail Carrier Shipment Information
Business record Rail shipment
Who sends it to whom The shipper (consignor) or its agent sends the 404 to the railroad that will move the equipment, either directly or through a value-added network.
When it is sent A shipper finishes loading a railcar or intermodal unit and releases the equipment to the railroad for movement.
Match on Rail shipment reference, equipment and route
Partner references 8 trading partners in this directory
Related documents X12 417 Rail Carrier Waybill Interchange, X12 410 Rail Carrier Freight Details and Invoice

Key segments in an EDI 404

The business segments that appear in at least half of the 8 partner document references listed below, most common first. The table leaves out envelope segments (ISA, GS, ST, SE, GE, IEA). Your partner guide sets which segments and elements your account must send.

Segment Name Purpose Partner references
BX General Shipment Information To transmit identification numbers and other basic shipment data. 8 of 8
BNX Rail Shipment Information To transmit rail-specific shipment data. 8 of 8
M3 Release To indicate that the equipment is or is not to be released. 8 of 8
N9 Reference Identification To transmit identifying information as specified by the Reference Identification Qualifier. 8 of 8
N7 Equipment Details To identify the equipment. 8 of 8
F9 Origin Station To identify the rail origin of the shipment. 8 of 8
D9 Destination Station To identify the rail destination of the shipment. 8 of 8
N1 Name To identify a party by type of organization, name, and code. 8 of 8
N3 Address Information To specify the location of the named party. 8 of 8
N4 Geographic Location To specify the geographic place of the named party. 8 of 8

Stacksync connects EDI documents such as the X12 404 to your ERP, CRM and databases with two-way sync. Read the EDI overview, check pricing and security, or book a demo to walk through your partner guide.

Implementation guide

X12 404 mapping and validation

X12 404 Rail Carrier Shipment Information is used when rail movement instructions are ready for carrier use. Preserve rail shipment reference, equipment and route so the rail shipment in your business system stays connected to the original document.

Use the version and implementation guide agreed with your trading partner to confirm required fields and responses.

Map records and test the business result
Document or decisionRecord and matching IDsWhat to test
Match the business record rail shipment

rail shipment reference, equipment and route

  • Define which combination of rail shipment reference, equipment and route identifies one business record, its lines and any later revision.
Update the receiving system Processing the rail shipment

ID assigned by the receiving system and processing result

  • Test a route involving more than one carrier and retain interchange details.
  • Separate repeated equipment numbers across different shipment dates.
Check the processing result Processing status for the rail shipment

Original document reference and matching response

  • Reconcile the rail shipment with the source after a timeout before sending it again. A lost response can occur after the destination has already processed the document.

How the related documents differ

Each message represents a different business event. Use shared references to connect the records while tracking each message’s outcome separately.

Implementation steps

  1. Choose the starting event and owner

    Decide which application acts when rail movement instructions are ready for carrier use. Name the operational owner of the rail shipment and the team that resolves rejected or ambiguous messages.

  2. Keep record IDs connected

    Map rail shipment reference, equipment and route. Confirm qualifiers, code lists, units and date/time meaning against the agreed X12 version and partner guide. Preserve the source reference alongside any new destination identifier.

  3. Test failures before launch

    Run the failure cases in the mapping table against realistic rail shipment data. Check how the receiving system reports a rejection and how your team corrects it without creating a duplicate.

  4. Track every document to completion

    Record transport delivery and document validation separately from successful rail shipment processing. Give unresolved errors an owner and check the receiving system before approving retries.

Go-live checklist

  • An approved 404 sample and the agreed version and partner guide are available.
  • The mapping tests pass with realistic rail shipment data.
  • Each submitted document can be traced through delivery, validation and processing in the receiving system.
  • Your team knows how to investigate and recover a rejected or timed-out rail shipment without processing it twice.

Document structure

X12 404 Rail Carrier Shipment Information at the element level

The X12 404 reference contains 117 segment entries and 755 data elements; 124 are marked mandatory in this reference. Use the version and partner guide agreed for your account to confirm required fields.

Segments
117
Data elements
755
Mandatory elements
124
Segments with elements marked mandatory in this reference
Segment Elements Mandatory
ZC1 9 6
BX 12 3
M3 4 1
N9 6 1
M1 12 1
DTM 4 1
N7 19 1
VC 8 1
N1 4 1
N3 2 1
M7 4 1
IC 9 2
Key identifiers in 404
  • Equipment Number
  • Transaction Reference Number
  • Transaction Reference Date
  • Correction Indicator Code
  • Standard Carrier Alpha Code
  • Transportation Method/Type Code
  • Transaction Set Purpose Code
  • Shipment Method of Payment Code

Catalog breakdown

Where X12 404 Rail Carrier Shipment Information appears in this catalog

The largest groups of classified 404 catalog entries are in logistics & transport.

By industry

  • logistics & transport 8 channels

FAQ

EDI 404 questions

What is an EDI 404?

EDI 404 is the X12 Rail Carrier Shipment Information transaction set. Trading partners use it when rail movement instructions are ready for carrier use. It carries the data for the rail shipment, and your system matches it on rail shipment reference, equipment and route.

Who sends an EDI 404 and who receives it?

The shipper (consignor) or its agent sends the 404 to the railroad that will move the equipment, either directly or through a value-added network. Your trading partner agreement confirms the direction and version for your account.

When is an EDI 404 sent?

A shipper finishes loading a railcar or intermodal unit and releases the equipment to the railroad for movement. Your partner guide sets any deadline or schedule for the document.

What are the key segments in an EDI 404?

Across 8 partner document references listed here, the business segments that appear most often include BX (General Shipment Information), BNX (Rail Shipment Information), M3 (Release), N9 (Reference Identification), N7 (Equipment Details), F9 (Origin Station). Each partner guide sets which segments and elements your account must send.

What is the difference between EDI 404 and EDI 417?

The 404 carries the rail shipment and is used when rail movement instructions are ready for carrier use. The 417 carries the rail waybill interchange and is used when rail shipment information passes between carriers.

What should I map for X12 404?

Start with rail shipment reference, equipment and route and the target rail shipment. Define duplicate detection, allowed updates and response correlation before mapping individual fields. Use the partner guide to check required fields and their formats.

How should I test 404 error handling?

Test a route involving more than one carrier and retain interchange details. Separate repeated equipment numbers across different shipment dates. Also test a lost response after destination processing so that a retry cannot create an unintended duplicate or repeated adjustment.

Which partners list X12 404?

The directory on this page links 8 partner entries that list this message. Choose your partner and channel, then confirm which messages and versions your account requires.

Connect EDI to your business systems

See how Stacksync can fit your enterprise EDI workflow. Bring one partner guide and a sample exchange to plan the system mapping, exception handling and production rollout.