CVS EDI 850 Purchase Order Integration

Schema Reference

21 segments · X12 850 Purchase Order

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

BEG01 Transaction Set Purpose Code

M ID 2-2

BEG02 Purchase Order Type Code

M ID 2-2

BEG03 Purchase Order Number

M AN 1-22

BEG05 Date

M DT 8-8

REF01 Reference Identification Qualifier

M ID 2-3

REF02 Reference Identification

C AN 1-30

REF03 Description

C AN 1-80

PER01 Contact Function Code

M ID 2-2

PER02 Name

O AN 1-60

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

SAC06 Allowance/Charge Percent Qualifier

C ID 1-1

SAC07 Percent

C R 1-6

SAC12 Allowance or Charge Method of Handling Code

O ID 2-2

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

ITD10 Deferred Amount Due

C N2 1-10

DTM01 Date/Time Qualifier

M ID 3-3

DTM02 Date

C DT 8-8

AMT Loop

AMT01 Amount Qualifier Code

M ID 1-3

AMT02 Monetary Amount

M R 1-18

N9 Loop Repeat: 1,000

N901 Reference Identification Qualifier

M ID 2-3

N902 Reference Identification

C AN 1-30

MSG01 Free-Form Message Text

M AN 1-264

N1 Loop Repeat: 200

N101 Entity Identifier Code

M ID 2-3

N103 Identification Code Qualifier

C ID 1-2

N104 Identification Code

C AN 2-80

N301 Address Information

M 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

PO1 Loop Repeat: 100,000

PO102 Quantity Ordered

C R 1-15

PO103 Unit or Basis for Measurement Code

O ID 2-2

PO104 Unit Price

C R 1-17

PO106 Product/Service ID Qualifier

C ID 2-2

PO107 Product/Service ID

C AN 1-48

PO108 Product/Service ID Qualifier

C ID 2-2

PO109 Product/Service ID

C AN 1-48

PO110 Product/Service ID Qualifier

C ID 2-2

PO111 Product/Service ID

C AN 1-48

PAM01 Quantity Qualifier

C ID 2-2

PAM02 Quantity

C R 1-15

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

CTT Loop Repeat: 1

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

How It Works

Automating CVS EDI 850

Stacksync validates, transforms, and delivers your 850 transactions automatically — so your team can focus on operations, not EDI compliance.

Validate

Transform

Route

Monitor

Stacksync automatically syncs incoming CVS 850 Purchase Orders directly to your ERP or database. New orders appear in your system within seconds — no manual data entry, no CSV imports. Field mappings are configured once and every future PO flows through automatically.

Business unit variations

CVS (Legacy ISA ID: 001786664)

CVS (Legacy ISA ID: CVS)

CVS

CVS EDI 850 FAQ

Common questions about 850 Purchase Order transactions with CVS.

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

Most suppliers are fully connected and processing live CVS 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 CVS?

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

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

What happens when CVS updates their EDI specifications?

Stacksync monitors CVS'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.