Walgreens EDI 810 Invoice Integration

Schema Reference

18 segments · X12 810 Invoice

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 Interchange Control Standards Identifier

M ID 1-1

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

BIG01 Date

M DT 8-8

BIG02 Invoice Number

M AN 1-22

BIG03 Date

O DT 8-8

BIG04 Purchase Order Number

O AN 1-22

BIG07 Transaction Type Code

O ID 2-2

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

O ID 2-2

N403 Postal Code

O ID 3-15

N404 Country Code

O ID 2-3

REF01 Reference Identification Qualifier

M ID 2-3

REF02 Reference Identification

C AN 1-30

ITD01 Terms Type Code

O ID 2-2

ITD02 Terms Basis Date Code

O ID 1-2

ITD03 Terms Discount Percent

O R 1-6

ITD04 Terms Discount Due Date

C DT 8-8

ITD05 Terms Discount Days Due

C N0 1-3

ITD06 Terms Net Due Date

O DT 8-8

ITD07 Terms Net Days

O N0 1-3

ITD08 Terms Discount Amount

O N2 1-10

ITD12 Description

O AN 1-80

FOB01 Shipment Method of Payment

M ID 2-2

IT1 Loop Repeat: 200,000

IT101 Assigned Identification

O AN 1-20

IT102 Quantity Invoiced

C R 1-10

IT103 Unit or Basis for Measurement Code

C ID 2-2

IT104 Unit Price

C R 1-17

IT105 Basis of Unit Price Code

O ID 2-2

IT106 Product/Service ID Qualifier

C ID 2-2

IT107 Product/Service ID

C AN 1-48

IT108 Product/Service ID Qualifier

C ID 2-2

IT109 Product/Service ID

C AN 1-48

PID Loop Repeat: 1,000

PID01 Item Description Type

M ID 1-1

PID05 Description

C AN 1-80

PO401 Pack

O N0 1-6

PO402 Size

C R 1-8

PO403 Unit or Basis for Measurement Code

C ID 2-2

PO406 Gross Weight per Pack

C R 1-9

PO407 Unit or Basis for Measurement Code

C ID 2-2

PO408 Gross Volume per Pack

C R 1-9

PO409 Unit or Basis for Measurement Code

C ID 2-2

SAC Loop Repeat: 25

SAC01 Allowance or Charge Indicator

M ID 1-1

SAC02 Service, Promotion, Allowance, or Charge Code

C ID 4-4

SAC05 Amount

O N2 1-15

SAC08 Rate

O R 1-9

SAC09 Unit or Basis for Measurement Code

C ID 2-2

SAC10 Quantity

C R 1-15

SAC11 Quantity

O R 1-15

SAC12 Allowance or Charge Method of Handling Code

O ID 2-2

SAC15 Description

C AN 1-80

TDS01 Amount

M N2 1-15

TDS02 Amount

O N2 1-15

TDS03 Amount

O N2 1-15

TDS04 Amount

O N2 1-15

SAC Loop Repeat: 25

SAC01 Allowance or Charge Indicator

M ID 1-1

SAC02 Service, Promotion, Allowance, or Charge Code

C ID 4-4

SAC05 Amount

O N2 1-15

SAC08 Rate

O R 1-9

SAC09 Unit or Basis for Measurement Code

C ID 2-2

SAC10 Quantity

C R 1-15

SAC11 Quantity

O R 1-15

SAC12 Allowance or Charge Method of Handling Code

O ID 2-2

SAC15 Description

C AN 1-80

CTT01 Number of Line Items

M N0 1-6

CTT02 Hash Total

O R 1-10

SE01 Number of Included Segments

M N0 1-10

SE02 Transaction Set Control Number

M AN 4-9

Automating Walgreens EDI 810

Stacksync validates, transforms, and delivers your 810 transactions automatically — so your team can focus on operations, not EDI compliance.

Validate

Transform

Route

Monitor

Stacksync auto-generates 810 Invoices from your billing system, pre-validated against the original PO and ASN. Three-way match discrepancies are flagged before submission — reducing rejections and accelerating payment cycles.

Walgreens EDI 810 FAQ

Common questions about 810 Invoice transactions with Walgreens.

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

Most suppliers are fully connected and processing live Walgreens 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 Walgreens?

No. Stacksync handles the entire EDI transport layer. We connect directly to Walgreens'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 Walgreens 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 Walgreens?

Stacksync supports all EDI document types required by Walgreens — 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 Walgreens 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 Walgreens's EDI network and your system in real time.

What happens when Walgreens updates their EDI specifications?

Stacksync monitors Walgreens'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.