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

Most suppliers are fully connected and processing live Warehouse Leader 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 Warehouse Leader?

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

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

What happens when Warehouse Leader updates their EDI specifications?

Stacksync monitors Warehouse Leader'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.

Warehouse Leader EDI 945 Warehouse Shipping Advice

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

W0601 Reporting Code

M ID 1-1

W0602 Depositor Order Number

O AN 1-22

W0603 Date

O DT 8-8

W0604 Shipment Identification Number

O AN 1-30

W0605 Agent Shipment ID Number

O AN 1-12

W0606 Purchase Order Number

O AN 1-22

W0607 Master Reference (Link) Number

C AN 1-22

W0608 Link Sequence Number

C N0 6-6

W0609 Special Handling Code

O ID 2-3

W0610 Shipping Date Change Reason Code

O ID 2-2

W0611 Transaction Type Code

O ID 2-2

W0612 Action Code

O ID 1-2

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

N105 Entity Relationship Code

O ID 2-2

N106 Entity Identifier Code

O ID 2-3

N201 Name

M AN 1-60

N202 Name

O AN 1-60

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

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

PER05 Communication Number Qualifier

C ID 2-2

PER06 Communication Number

C AN 1-80

PER07 Communication Number Qualifier

C ID 2-2

PER08 Communication Number

C AN 1-80

PER09 Contact Inquiry Reference

O AN 1-20

N901 Reference Identification Qualifier

M ID 2-3

N902 Reference Identification

C AN 1-30

N903 Free-form Description

C AN 1-45

N904 Date

O DT 8-8

N905 Time

C TM 4-8

N906 Time Code

O ID 2-2

G6101 Contact Function Code

M ID 2-2

G6102 Name

M AN 1-60

G6103 Communication Number Qualifier

C ID 2-2

G6104 Communication Number

C AN 1-80

G6105 Contact Inquiry Reference

O AN 1-20

G6201 Date Qualifier

C ID 2-2

G6202 Date

C DT 8-8

G6203 Time Qualifier

C ID 1-2

G6204 Time

C TM 4-8

G6205 Time Code

O ID 2-2

NTE01 Note Reference Code

O ID 3-3

NTE02 Description

M AN 1-80

W2701 Transportation Method/Type Code

M ID 1-2

W2702 Standard Carrier Alpha Code

C ID 2-4

W2703 Routing

C AN 1-35

W2704 Shipment Method of Payment

O ID 2-2

W2705 Equipment Description Code

O ID 2-2

W2706 Equipment Initial

O AN 1-4

W2707 Equipment Number

O AN 1-10

W2708 Shipment/Order Status Code

O ID 2-2

W2709 Special Handling Code

O ID 2-3

W2710 Carrier/Route Change Reason Code

O ID 2-2

W601 Special Handling Code

M ID 2-3

W602 Special Handling Code

O ID 2-3

W603 Special Handling Code

O ID 2-3

W604 Special Handling Code

O ID 2-3

W2801 Consolidation Code

M ID 1-1

W2802 Weight

C R 1-10

W2803 Weight Qualifier

C ID 1-2

W2804 Weight Unit Code

C ID 1-1

W2805 Total Stopoffs

O N0 1-2

W2806 Location Identifier

C AN 1-30

W2807 Location Qualifier

C ID 1-2

W2808 Bill of Lading/Waybill Number

O AN 1-12

W1001 Unit Load Option Code

O ID 2-2

W1002 Quantity of Pallets Shipped

O N0 1-3

W1003 Pallet Exchange Code

O ID 1-1

W1004 Seal Number

O AN 2-15

W1005 Seal Number

O AN 2-15

W1006 Temperature

C R 1-4

W1007 Unit or Basis for Measurement Code

C ID 2-2

W1008 Temperature

C R 1-4

W1009 Unit or Basis for Measurement Code

C ID 2-2

G7201 Allowance or Charge Code

M ID 1-3

G7202 Allowance or Charge Method of Handling Code

M ID 2-2

G7203 Allowance or Charge Number

C AN 1-16

G7204 Exception Number

O AN 1-16

G7205 Allowance or Charge Rate

C R 1-15

G7206 Allowance or Charge Quantity

C R 1-10

G7207 Unit or Basis for Measurement Code

C ID 2-2

G7208 Allowance or Charge Total Amount

C N2 1-15

G7209 Percent

C R 1-6

G7210 Dollar Basis For Percent

C R 1-9

G7211 Option Number

O AN 1-20

LM01 Agency Qualifier Code

M ID 2-2

LM02 Source Subqualifier

O AN 1-15

LQ01 Code List Qualifier Code

O ID 1-3

LQ02 Industry Code

C AN 1-30

LX01 Assigned Number

M N0 1-6

MAN01 Marks and Numbers Qualifier

M ID 1-2

MAN02 Marks and Numbers

M AN 1-48

MAN03 Marks and Numbers

O AN 1-48

MAN04 Marks and Numbers Qualifier

C ID 1-2

MAN05 Marks and Numbers

C AN 1-48

MAN06 Marks and Numbers

O AN 1-48

PAL01 Pallet Type Code

O ID 1-2

PAL02 Pallet Tiers

O N0 1-3

PAL03 Pallet Blocks

O N0 1-3

PAL04 Pack

O N0 1-6

PAL05 Unit Weight

C R 1-8

PAL06 Unit or Basis for Measurement Code

C ID 2-2

PAL07 Length

C R 1-8

PAL08 Width

C R 1-8

PAL09 Height

C R 1-8

PAL10 Unit or Basis for Measurement Code

C ID 2-2

PAL11 Gross Weight per Pack

C R 1-9

PAL12 Unit or Basis for Measurement Code

C ID 2-2

PAL13 Gross Volume per Pack

C R 1-9

PAL14 Unit or Basis for Measurement Code

C ID 2-2

PAL15 Pallet Exchange Code

O ID 1-1

PAL16 Inner Pack

O N0 1-6

N901 Reference Identification Qualifier

M ID 2-3

N902 Reference Identification

C AN 1-30

N903 Free-form Description

C AN 1-45

N904 Date

O DT 8-8

N905 Time

C TM 4-8

N906 Time Code

O ID 2-2

W1201 Shipment/Order Status Code

M ID 2-2

W1202 Quantity Ordered

O R 1-15

W1203 Number of Units Shipped

O R 1-10

W1204 Quantity Difference

O R 1-9

W1205 Unit or Basis for Measurement Code

O ID 2-2

W1207 Product/Service ID Qualifier

C ID 2-2

W1208 Product/Service ID

C AN 1-48

W1209 Warehouse Lot Number

O AN 1-12

W1210 Weight

C R 1-10

W1211 Weight Qualifier

C ID 1-2

W1212 Weight Unit Code

C ID 1-1

W1213 Weight

C R 1-10

W1214 Weight Qualifier

C ID 1-2

W1215 Weight Unit Code

C ID 1-1

W1217 Product/Service ID Qualifier

C ID 2-2

W1218 Product/Service ID

C AN 1-48

W1219 Line Item Change Reason Code

O ID 2-2

W1220 Warehouse Detail Adjustment Identifier

O ID 1-1

W1221 Product/Service ID Qualifier

C ID 2-2

W1222 Product/Service ID

C AN 1-48

G6901 Free-form Description

M AN 1-45

N901 Reference Identification Qualifier

M ID 2-3

N902 Reference Identification

C AN 1-30

N903 Free-form Description

C AN 1-45

N904 Date

O DT 8-8

N905 Time

C TM 4-8

N906 Time Code

O ID 2-2

G6201 Date Qualifier

C ID 2-2

G6202 Date

C DT 8-8

G6203 Time Qualifier

C ID 1-2

G6204 Time

C TM 4-8

G6205 Time Code

O ID 2-2

QTY01 Quantity Qualifier

M ID 2-2

QTY02 Quantity

C R 1-15

QTY04 Free-Form Message

C AN 1-30

MEA01 Measurement Reference ID Code

O ID 2-2

MEA02 Measurement Qualifier

O ID 1-3

MEA03 Measurement Value

C R 1-20

MEA05 Range Minimum

C R 1-20

MEA06 Range Maximum

C R 1-20

MEA07 Measurement Significance Code

O ID 2-2

MEA08 Measurement Attribute Code

C ID 2-2

MEA09 Surface/Layer/Position Code

O ID 2-2

MEA10 Measurement Method or Device

O ID 2-4

AMT01 Amount Qualifier Code

M ID 1-3

AMT02 Monetary Amount

M R 1-18

AMT03 Credit/Debit Flag Code

O ID 1-1

R401 Port or Terminal Function Code

M ID 1-1

R402 Location Qualifier

C ID 1-2

R403 Location Identifier

C AN 1-30

R404 Port Name

O AN 2-24

R405 Country Code

O ID 2-3

R406 Terminal Name

O AN 2-30

R407 Pier Number

O AN 1-4

R408 State or Province Code

O ID 2-2

W2701 Transportation Method/Type Code

M ID 1-2

W2702 Standard Carrier Alpha Code

C ID 2-4

W2703 Routing

C AN 1-35

W2704 Shipment Method of Payment

O ID 2-2

W2705 Equipment Description Code

O ID 2-2

W2706 Equipment Initial

O AN 1-4

W2707 Equipment Number

O AN 1-10

W2708 Shipment/Order Status Code

O ID 2-2

W2709 Special Handling Code

O ID 2-3

W2710 Carrier/Route Change Reason Code

O ID 2-2

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

N105 Entity Relationship Code

O ID 2-2

N106 Entity Identifier Code

O ID 2-3

G7201 Allowance or Charge Code

M ID 1-3

G7202 Allowance or Charge Method of Handling Code

M ID 2-2

G7203 Allowance or Charge Number

C AN 1-16

G7204 Exception Number

O AN 1-16

G7205 Allowance or Charge Rate

C R 1-15

G7206 Allowance or Charge Quantity

C R 1-10

G7207 Unit or Basis for Measurement Code

C ID 2-2

G7208 Allowance or Charge Total Amount

C N2 1-15

G7209 Percent

C R 1-6

G7210 Dollar Basis For Percent

C R 1-9

G7211 Option Number

O AN 1-20

LM01 Agency Qualifier Code

M ID 2-2

LM02 Source Subqualifier

O AN 1-15

LQ01 Code List Qualifier Code

O ID 1-3

LQ02 Industry Code

C AN 1-30

LS01 Loop Identifier Code

M AN 1-6

LX01 Assigned Number

M N0 1-6

N901 Reference Identification Qualifier

M ID 2-3

N902 Reference Identification

C AN 1-30

N903 Free-form Description

C AN 1-45

N904 Date

O DT 8-8

N905 Time

C TM 4-8

N906 Time Code

O ID 2-2

G6201 Date Qualifier

C ID 2-2

G6202 Date

C DT 8-8

G6203 Time Qualifier

C ID 1-2

G6204 Time

C TM 4-8

G6205 Time Code

O ID 2-2

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

N105 Entity Relationship Code

O ID 2-2

N106 Entity Identifier Code

O ID 2-3

LM01 Agency Qualifier Code

M ID 2-2

LM02 Source Subqualifier

O AN 1-15

LQ01 Code List Qualifier Code

O ID 1-3

LQ02 Industry Code

C AN 1-30

LE01 Loop Identifier Code

M AN 1-6

FA101 Agency Qualifier Code

M ID 2-2

FA102 Service, Promotion, Allowance, or Charge Code

O ID 4-4

FA103 Allowance or Charge Indicator

O ID 1-1

FA201 Breakdown Structure Detail Code

M ID 2-2

FA202 Financial Information Code

M AN 1-80

W0301 Number of Units Shipped

M R 1-10

W0302 Weight

O R 1-10

W0303 Unit or Basis for Measurement Code

C ID 2-2

W0304 Volume

C R 1-8

W0305 Unit or Basis for Measurement Code

C ID 2-2

W0306 Lading Quantity

C N0 1-7

W0307 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

Warehouse Leader X12 945 Warehouse Shipping Advice

Schema Reference

Automating Warehouse Leader EDI 945

Warehouse Leader EDI 945 FAQ

Alex Marinov

Schema Reference

Automating Warehouse Leader EDI 945

Other Warehouse Leader EDI transactions

Warehouse Leader EDI 945 FAQ

Alex Marinov