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X12 transaction code

EDI 945 Warehouse Shipping Advice (X12 945)

EDI 945 is the X12 Warehouse Shipping Advice transaction set, used when a warehouse reports what it shipped. The 3PL or warehouse sends the 945 back to the supplier, manufacturer, or seller whose goods it ships.

Standard
X12
Code
945
Partner references
13

At a glance

EDI 945 at a glance

What the 945 carries, who sends it to whom, when it goes out, and the segments trading partners list for it.

X12 945 Warehouse Shipping Advice summary
Document X12 945 Warehouse Shipping Advice
Business record Warehouse shipment confirmation
Who sends it to whom The 3PL or warehouse sends the 945 back to the supplier, manufacturer, or seller whose goods it ships.
When it is sent The warehouse completes picking, packing, and carrier handoff for a 940-directed order and the freight leaves the dock.
Match on Warehouse order, shipment and shipped line
Partner references 13 trading partners in this directory
Related documents X12 940 Warehouse Shipping Order, X12 856 Ship Notice/Manifest, X12 810 Invoice

Key segments in an EDI 945

The business segments that appear in at least half of the 14 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
W06 Warehouse Shipment Identification To provide identifying numbers, dates, and other basic data for this transaction set. 14 of 14
N1 Name To identify a party by type of organization, name, and code. 14 of 14
LX Assigned Number To reference a line number in a transaction set. 14 of 14
W27 Carrier Detail To specify details of the transportation equipment and carrier routing details. 13 of 14
W12 Warehouse Item Detail To designate those line items that were shipped. 13 of 14
W03 Total Shipment Information To provide totals relating to the shipment. 12 of 14
N9 Reference Identification To transmit identifying information as specified by the Reference Identification Qualifier. 11 of 14
G62 Date/Time To specify pertinent dates and times. 11 of 14
N3 Address Information To specify the location of the named party. 10 of 14
N4 Geographic Location To specify the geographic place of the named party. 10 of 14

Stacksync connects EDI documents such as the X12 945 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 945 mapping and validation

X12 945 Warehouse Shipping Advice is used when a warehouse reports what it shipped. Preserve warehouse order, shipment and shipped line so the warehouse shipment confirmation 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 warehouse shipment confirmation

warehouse order, shipment and shipped line

  • Define which combination of warehouse order, shipment and shipped line identifies one business record, its lines and any later revision.
Update the receiving system Processing the warehouse shipment confirmation

ID assigned by the receiving system and processing result

  • Test partial fulfillment and leave the unshipped order quantity open.
  • Reconcile shipped units and tracking references before preparing a customer-facing shipment notice.
Check the processing result Processing status for the warehouse shipment confirmation

Original document reference and matching response

  • Reconcile the warehouse shipment confirmation 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 a warehouse reports what it shipped. Name the operational owner of the warehouse shipment confirmation and the team that resolves rejected or ambiguous messages.

  2. Keep record IDs connected

    Map warehouse order, shipment and shipped line. 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 warehouse shipment confirmation 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 warehouse shipment confirmation processing. Give unresolved errors an owner and check the receiving system before approving retries.

Go-live checklist

  • An approved 945 sample and the agreed version and partner guide are available.
  • The mapping tests pass with realistic warehouse shipment confirmation 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 warehouse shipment confirmation without processing it twice.

Document structure

X12 945 Warehouse Shipping Advice at the element level

The X12 945 reference contains 58 segment entries and 279 data elements; 68 are marked mandatory in this reference. Use the version and partner guide agreed for your account to confirm required fields.

Segments
58
Data elements
279
Mandatory elements
68
Segments with elements marked mandatory in this reference
Segment Elements Mandatory
W06 12 1
N1 6 1
N2 2 1
N3 2 1
PER 9 1
N9 6 1
G61 5 2
NTE 2 1
W27 10 1
W6 4 1
W28 8 1
G72 11 2
Key identifiers in 945
  • Reporting Code
  • Entity Identifier Code
  • Name
  • Address Information
  • Contact Function Code
  • Reference Identification Qualifier
  • Description
  • Transportation Method/Type Code

Catalog breakdown

Where X12 945 Warehouse Shipping Advice appears in this catalog

The largest groups of classified 945 catalog entries are in logistics & transport, grocery & food and electronics & technology.

By industry

  • logistics & transport 6 channels
  • grocery & food 5 channels
  • electronics & technology 2 channels
  • manufacturing & industrial 1 channel

FAQ

EDI 945 questions

What is an EDI 945?

EDI 945 is the X12 Warehouse Shipping Advice transaction set. Trading partners use it when a warehouse reports what it shipped. It carries the data for the warehouse shipment confirmation, and your system matches it on warehouse order, shipment and shipped line.

Who sends an EDI 945 and who receives it?

The 3PL or warehouse sends the 945 back to the supplier, manufacturer, or seller whose goods it ships. Your trading partner agreement confirms the direction and version for your account.

When is an EDI 945 sent?

The warehouse completes picking, packing, and carrier handoff for a 940-directed order and the freight leaves the dock. Your partner guide sets any deadline or schedule for the document.

What are the key segments in an EDI 945?

Across 14 partner document references listed here, the business segments that appear most often include W06 (Warehouse Shipment Identification), N1 (Name), LX (Assigned Number), W27 (Carrier Detail), W12 (Warehouse Item Detail), W03 (Total Shipment Information). Each partner guide sets which segments and elements your account must send.

What is the difference between EDI 945 and EDI 940?

The 940 is the shipping order the owner of the goods sends to the warehouse. The 945 confirms what the warehouse shipped against it, including any lines it shipped short.

What should I map for X12 945?

Start with warehouse order, shipment and shipped line and the target warehouse shipment confirmation. 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 945 error handling?

Test partial fulfillment and leave the unshipped order quantity open. Reconcile shipped units and tracking references before preparing a customer-facing shipment notice. Also test a lost response after destination processing so that a retry cannot create an unintended duplicate or repeated adjustment.

Which partners list X12 945?

The directory on this page links 13 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.