Walgreens EDI 860 PO Change Request

Schema Reference

26 segments · X12 860 Purchase Order Change Request

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

BCH01 Transaction Set Purpose Code

M ID 2-2

BCH02 Purchase Order Type Code

M ID 2-2

BCH03 Purchase Order Number

M AN 1-22

BCH06 Date

M DT 8-8

BCH15 Transaction Type Code

O ID 2-2

REF01 Reference Identification Qualifier

M ID 2-3

REF02 Reference Identification

C AN 1-30

PER01 Contact Function Code

M ID 2-2

PER02 Name

O AN 1-60

PER03 Communication Number Qualifier

C ID 2-2

PER04 Communication Number

C AN 1-80

PER09 Contact Inquiry Reference

O AN 1-20

SAC Loop Repeat: 25

SAC01 Allowance or Charge Indicator

M ID 1-1

SAC02 Service, Promotion, Allowance, or Charge Code

C ID 4-4

SAC03 Agency Qualifier Code

C ID 2-2

SAC04 Agency Service, Promotion, Allowance, or Charge Code

C AN 1-10

SAC05 Amount

O N2 1-15

SAC06 Allowance/Charge Percent Qualifier

C ID 1-1

SAC07 Percent

C R 1-6

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

SAC13 Reference Identification

C AN 1-30

SAC15 Description

C AN 1-80

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

ITD05 Terms Discount Days Due

C N0 1-3

ITD07 Terms Net Days

O N0 1-3

ITD12 Description

O AN 1-80

DTM01 Date/Time Qualifier

M ID 3-3

DTM02 Date

C DT 8-8

N9 Loop Repeat: 1,000

N901 Reference Identification Qualifier

M ID 2-3

N903 Free-form Description

C AN 1-45

MSG01 Free-Form Message Text

M AN 1-264

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

N405 Location Qualifier

C ID 1-2

N406 Location Identifier

O AN 1-30

POC Loop Repeat: 1,000

POC01 Assigned Identification

O AN 1-20

POC02 Change or Response Type Code

M ID 2-2

POC03 Quantity Ordered

O R 1-15

POC04 Quantity Left to Receive

C R 1-9

POC06 Unit Price

C R 1-17

POC07 Basis of Unit Price Code

O ID 2-2

POC08 Product/Service ID Qualifier

C ID 2-2

POC09 Product/Service ID

C AN 1-48

POC10 Product/Service ID Qualifier

C ID 2-2

POC11 Product/Service ID

C AN 1-48

POC14 Product/Service ID Qualifier

C ID 2-2

POC15 Product/Service ID

C AN 1-48

POC18 Product/Service ID Qualifier

C ID 2-2

POC19 Product/Service ID

C AN 1-48

PO301 Change Reason Code

M ID 2-2

PO302 Date

O DT 8-8

PO303 Price Identifier Code

C ID 3-3

PO304 Unit Price

O R 1-17

PO306 Quantity

M R 1-15

PO307 Unit or Basis for Measurement Code

M ID 2-2

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

PO405 Weight Qualifier

O ID 1-2

PO406 Gross Weight per Pack

C R 1-9

PO407 Unit or Basis for Measurement Code

C ID 2-2

PO410 Length

C R 1-8

PO411 Width

C R 1-8

PO412 Height

C R 1-8

PO413 Unit or Basis for Measurement Code

C ID 2-2

REF01 Reference Identification Qualifier

M ID 2-3

REF02 Reference Identification

C AN 1-30

PER01 Contact Function Code

M ID 2-2

PER02 Name

O AN 1-60

PER03 Communication Number Qualifier

C ID 2-2

PER04 Communication Number

C AN 1-80

PER09 Contact Inquiry Reference

O AN 1-20

SAC Loop Repeat: 25

SAC01 Allowance or Charge Indicator

M ID 1-1

SAC02 Service, Promotion, Allowance, or Charge Code

C ID 4-4

SAC03 Agency Qualifier Code

C ID 2-2

SAC04 Agency Service, Promotion, Allowance, or Charge Code

C AN 1-10

SAC05 Amount

O N2 1-15

SAC06 Allowance/Charge Percent Qualifier

C ID 1-1

SAC07 Percent

C R 1-6

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

SAC13 Reference Identification

C AN 1-30

SAC15 Description

C AN 1-80

FOB01 Shipment Method of Payment

M ID 2-2

FOB02 Location Qualifier

C ID 1-2

FOB03 Description

O AN 1-80

FOB06 Location Qualifier

C ID 1-2

FOB07 Description

O AN 1-80

TD401 Special Handling Code

C ID 2-3

TD402 Hazardous Material Code Qualifier

C ID 1-1

TD403 Hazardous Material Class Code

C AN 1-4

TD404 Description

C AN 1-80

TD405 Yes/No Condition or Response Code

O ID 1-1

MSG01 Free-Form Message Text

M AN 1-264

CTT Loop Repeat: 1

CTT01 Number of Line Items

M N0 1-6

CTT02 Hash Total

O R 1-10

CTT03 Weight

C R 1-10

CTT04 Unit or Basis for Measurement Code

C ID 2-2

CTT05 Volume

C R 1-8

CTT06 Unit or Basis for Measurement Code

C ID 2-2

SE01 Number of Included Segments

M N0 1-10

SE02 Transaction Set Control Number

M AN 4-9

Walgreens EDI 860 FAQ

Common questions about 860 Purchase Order Change Request 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.