MidwayUSA EDI 856 ASN Integration

Schema Reference

19 segments · X12 856 Ship Notice/Manifest

ISA01 Authorization Information Qualifier

M ID 2-2

ISA02 Authorization Information

M AN 10-10

ISA03 Security Information Qualifier

M ID 2-2

ISA04 Security Information

M AN 10-10

ISA05 Interchange ID Qualifier

M ID 2-2

ISA06 Interchange Sender ID

M AN 15-15

ISA07 Interchange ID Qualifier

M ID 2-2

ISA08 Interchange Receiver ID

M AN 15-15

ISA09 Interchange Date

M DT 6-6

ISA10 Interchange Time

M TM 4-4

ISA11 Repetition Separator M MIN 1 MAX 1 ID: I65 Type is not applicable; the repetition separator is a delimiter and not a data element; this field provides the delimiter used to separate repeated occurrences of a simple data element or a composite data structure; this value must be different than the data element separator, component element separator, and the segment terminator ISA12 Interchange Control Version Number

M ID 5-5

ISA13 Interchange Control Number

M N0 9-9

ISA14 Acknowledgment Requested

M ID 1-1

ISA15 Usage Indicator

M ID 1-1

GS01 Functional Identifier Code

M ID 2-2

GS02 Application Sender's Code

M AN 2-15

GS03 Application Receiver's Code

M AN 2-15

GS04 Date

M DT 8-8

GS05 Time

M TM 4-8

GS06 Group Control Number

M N0 1-9

GS07 Responsible Agency Code

M ID 1-2

GS08 Version / Release / Industry Identifier Code

M AN 1-12

ST01 Transaction Set Identifier Code

M ID 3-3

ST02 Transaction Set Control Number

M AN 4-9

BSN01 Transaction Set Purpose Code

M ID 2-2

BSN02 Shipment Identification

M AN 2-30

BSN03 Date

M DT 8-8

BSN04 Time

M TM 4-8

BSN05 Hierarchical Structure Code

O ID 4-4

HL Loop Repeat: 200,000

HL01 Hierarchical ID Number

M AN 1-12

HL02 Hierarchical Parent ID Number

O AN 1-12

HL03 Hierarchical Level Code

M ID 1-2

LIN01 Assigned Identification

O AN 1-20

LIN02 Product/Service ID Qualifier

M ID 2-2

LIN03 Product/Service ID

M AN 1-48

LIN04 Product/Service ID Qualifier

C ID 2-2

LIN05 Product/Service ID

C AN 1-48

LIN06 Product/Service ID Qualifier

C ID 2-2

LIN07 Product/Service ID

C AN 1-48

SN102 Number of Units Shipped

M R 1-10

SN103 Unit or Basis for Measurement Code

M ID 2-2

PRF01 Purchase Order Number

M AN 1-22

PRF04 Date

O DT 8-8

PID01 Item Description Type

M ID 1-1

PID02 Product/Process Characteristic Code

O ID 2-3

PID05 Description

C AN 1-80

TD101 Packaging Code

O AN 3-5

TD102 Lading Quantity

C N0 1-7

TD106 Weight Qualifier

O ID 1-2

TD107 Weight

C R 1-10

TD108 Unit or Basis for Measurement Code

C ID 2-2

TD502 Identification Code Qualifier

C ID 1-2

TD503 Identification Code

C AN 2-80

TD505 Routing

C AN 1-35

REF01 Reference Identification Qualifier

M ID 2-3

REF02 Reference Identification

C AN 1-50

MAN01 Marks and Numbers Qualifier

M ID 1-2

MAN02 Marks and Numbers

M AN 1-48

MAN04 Marks and Numbers Qualifier

C ID 1-2

MAN05 Marks and Numbers

C AN 1-48

DTM01 Date/Time Qualifier

M ID 3-3

DTM02 Date

C DT 8-8

N1 Loop Repeat: 200

N101 Entity Identifier Code

M ID 2-3

N102 Name

C AN 1-60

N103 Identification Code Qualifier

C ID 1-2

N104 Identification Code

C AN 2-80

N301 Address Information

M AN 1-55

N302 Address Information

O AN 1-55

N401 City Name

O AN 2-30

N402 State or Province Code

C ID 2-2

N403 Postal Code

O ID 3-15

N404 Country Code

C ID 2-3

CTT01 Number of Line Items

M N0 1-6

SE01 Number of Included Segments

M N0 1-10

SE02 Transaction Set Control Number

M AN 4-9

Automating MidwayUSA EDI 856

Stacksync validates, transforms, and delivers your 856 transactions automatically — so your team can focus on operations, not EDI compliance.

Validate

Transform

Route

Monitor

Stacksync builds and transmits 856 ASNs automatically when shipments are created in your WMS. Carton contents, pallet labels, SSCC-18 codes, and tracking numbers are pulled from your warehouse data — eliminating manual EDI entry.

MidwayUSA EDI 856 FAQ

Common questions about 856 Ship Notice/Manifest transactions with MidwayUSA.

How long does it take to set up MidwayUSA EDI with Stacksync?

Most suppliers are fully connected and processing live MidwayUSA EDI transactions within 3–5 business days. Stacksync's no-code setup means you don't need developers or EDI consultants — configure your field mappings through our visual interface, run a test cycle, and go live.

Do I need an existing VAN or AS2 connection to trade with MidwayUSA?

No. Stacksync handles the entire EDI transport layer. We connect directly to MidwayUSA's trading partner network through our certified connections. You don't need to manage a separate VAN subscription, AS2 certificates, or SFTP configurations.

How does Stacksync help with MidwayUSA compliance?

Stacksync improves compliance scores by eliminating manual processing delays. Purchase Orders sync to your system in real time, ASNs are generated automatically when you ship, and invoices are validated with three-way matching before submission. Real-time monitoring alerts you to issues before they become chargebacks.

What EDI document types does Stacksync support for MidwayUSA?

Stacksync supports all EDI document types required by MidwayUSA — including Purchase Orders (850), Invoices (810), ASNs (856), PO Acknowledgments (855), and more. Our platform handles the full lifecycle from order to payment automatically.

Can I connect MidwayUSA EDI to my existing ERP or WMS?

Yes. Stacksync integrates with any system that has a database or API — including SAP, Oracle, NetSuite, Microsoft Dynamics, and custom-built ERPs. Data flows bidirectionally between MidwayUSA's EDI network and your system in real time.

What happens when MidwayUSA updates their EDI specifications?

Stacksync monitors MidwayUSA's EDI spec changes and updates our mappings proactively. When a change affects your integration, we notify you and apply updates — so you stay compliant without scrambling to decode new implementation guides.