X12
All Business Units
37segments
10loops
7mandatory
Schema Reference
37 segments · X12 204 Motor Carrier Load Tender
ISA ISA Interchange Control Header
Mandatory Max: 1
ISA01 Authorization Information Qualifier
ISA02 Authorization Information
ISA03 Security Information Qualifier
ISA04 Security Information
ISA05 Interchange ID Qualifier
ISA06 Interchange Sender ID
ISA07 Interchange ID Qualifier
ISA08 Interchange Receiver ID
ISA09 Interchange Date
ISA10 Interchange Time
ISA11 Interchange Control Standards Identifier
ISA12 Interchange Control Version Number
ISA13 Interchange Control Number
ISA14 Acknowledgment Requested
ISA15 Usage Indicator
GS GS Functional Group Header
Mandatory Max: 1
GS01 Functional Identifier Code
GS02 Application Sender's Code
GS03 Application Receiver's Code
GS04 Date
GS05 Time
GS06 Group Control Number
GS07 Responsible Agency Code
GS08 Version / Release / Industry Identifier Code
ST Transaction Set Header
Mandatory Max: 1
ST01 Transaction Set Identifier Code
ST02 Transaction Set Control Number
B2 Beginning Segment for Shipment Information Transaction
Mandatory Max: 1
B202 Standard Carrier Alpha Code
B204 Shipment Identification Number
B206 Shipment Method of Payment
B2A Set Purpose
Mandatory Max: 1
B2A01 Transaction Set Purpose Code
B2A02 Application Type
L11 Business Instructions and Reference Number
Optional Max: 50
L1101 Reference Identification
L1102 Reference Identification Qualifier
L1103 Description
AT5 Bill of Lading Handling Requirements
Optional Max: 6
AT501 Special Handling Code
AT502 Special Services Code
AT503 Special Handling Description
PLD Pallet Information
Optional Max: 1
PLD01 Quantity of Pallets Shipped
NTE Note/Special Instruction
Optional Max: 10
NTE01 Note Reference Code
NTE02 Description
N1 Name
Optional Max: 1
N101 Entity Identifier Code
N102 Name
N103 Identification Code Qualifier
N104 Identification Code
N3 Address Information
Optional Max: 2
N301 Address Information
N302 Address Information
N4 Geographic Location
Optional Max: 1
N401 City Name
N402 State or Province Code
N403 Postal Code
N404 Country Code
G61 Contact
Optional Max: 3
G6101 Contact Function Code
G6102 Name
G6103 Communication Number Qualifier
G6104 Communication Number
N7 Equipment Details
Optional Max: 1
N702 Equipment Number
N711 Equipment Description Code
N715 Equipment Length
S5 Stop Off Details
Mandatory Max: 1
S501 Stop Sequence Number
S502 Stop Reason Code
L11 Business Instructions and Reference Number
Optional Max: 50
L1101 Reference Identification
L1102 Reference Identification Qualifier
L1103 Description
G62 Date/Time
Optional Max: 2
G6201 Date Qualifier
G6202 Date
G6203 Time Qualifier
G6204 Time
AT8 Shipment Weight, Packaging and Quantity Data
Optional Max: 1
AT801 Weight Qualifier
AT802 Weight Unit Code
AT803 Weight
AT805 Lading Quantity
NTE Note/Special Instruction
Optional Max: 10
NTE01 Note Reference Code
NTE02 Description
N1 Name
Optional Max: 1
N101 Entity Identifier Code
N102 Name
N103 Identification Code Qualifier
N104 Identification Code
N3 Address Information
Optional Max: 2
N301 Address Information
N302 Address Information
N4 Geographic Location
Optional Max: 1
N401 City Name
N402 State or Province Code
N403 Postal Code
N404 Country Code
G61 Contact
Optional Max: 3
G6101 Contact Function Code
G6102 Name
G6103 Communication Number Qualifier
G6104 Communication Number
L5 Description, Marks and Numbers
Optional Max: 1
L502 Lading Description
L503 Commodity Code
L504 Commodity Code Qualifier
L505 Packaging Code
L506 Marks and Numbers
L507 Marks and Numbers Qualifier
AT8 Shipment Weight, Packaging and Quantity Data
Optional Max: 1
AT801 Weight Qualifier
AT802 Weight Unit Code
AT803 Weight
AT805 Lading Quantity
G61 Contact
Optional Max: 3
G6101 Contact Function Code
G6102 Name
G6103 Communication Number Qualifier
G6104 Communication Number
L11 Business Instructions and Reference Number
Optional Max: 50
L1101 Reference Identification
L1102 Reference Identification Qualifier
L1103 Description
LH1 Hazardous Identification Information
Optional Max: 1
LH101 Unit or Basis for Measurement Code
LH102 Lading Quantity
LH103 UN/NA Identification Code
LH105 Commodity Code
LH106 Unit or Basis for Measurement Code
LH107 Quantity
LH110 Packing Group Code
LH2 Hazardous Classification Information
Optional Max: 4
LH201 Hazardous Classification
LH203 Hazardous Placard Notation
LH206 Unit or Basis for Measurement Code
LH207 Temperature
LH3 Hazardous Material Shipping Name
Optional Max: 10
LH301 Hazardous Material Shipping Name
LH302 Hazardous Material Shipping Name Qualifier
LH303 N.O.S. Indicator Code
LFH Freeform Hazardous Material Information
Optional Max: 20
LFH01 Hazardous Material Shipment Information Qualifier
LFH02 Hazardous Material Shipment Information
OID Order Identification Detail
Optional Max: 1
OID01 Reference Identification
OID02 Purchase Order Number
L5 Description, Marks and Numbers
Optional Max: 1
L502 Lading Description
L503 Commodity Code
L504 Commodity Code Qualifier
L505 Packaging Code
L506 Marks and Numbers
L507 Marks and Numbers Qualifier
AT8 Shipment Weight, Packaging and Quantity Data
Optional Max: 1
AT801 Weight Qualifier
AT802 Weight Unit Code
AT803 Weight
AT805 Lading Quantity
G61 Contact
Optional Max: 3
G6101 Contact Function Code
G6102 Name
G6103 Communication Number Qualifier
G6104 Communication Number
L3 Total Weight and Charges
Optional Max: 1
L301 Weight
L302 Weight Qualifier
L303 Freight Rate
L304 Rate/Value Qualifier
L305 Charge
L311 Lading Quantity
SE Transaction Set Trailer
Mandatory Max: 1
SE01 Number of Included Segments
SE02 Transaction Set Control Number
How It Works
Automating Walgreens (via Mercury Gate) EDI 204
Stacksync validates, transforms, and delivers your 204 transactions automatically — so your team can focus on operations, not EDI compliance.
Validate
Transform
Route
Monitor
Stacksync syncs incoming Walgreens (via Mercury Gate) 204 Load Tenders directly to your TMS or dispatch system — so your operations team can accept or reject loads without switching between systems.
POC from integration engineers
No-code EDI setup
Real-time compliance monitoring
White-glove onboarding