X12
All Business Units
7segments
0loops
5mandatory
Schema Reference
7 segments · X12 990 Response to a 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
B1 Beginning Segment for Booking or Pick-up/Delivery
Mandatory Max: 1
B101 Standard Carrier Alpha Code
B102 Shipment Identification Number
B103 Date
B104 Reservation Action Code
N9 Reference Identification
Optional Max: 1
N901 Reference Identification Qualifier
N902 Reference Identification
K1 Remarks
Optional Max: 10
K101 Free-Form Message
K102 Free-Form Message
SE Transaction Set Trailer
Mandatory Max: 1
SE01 Number of Included Segments
SE02 Transaction Set Control Number
How It Works
Automating School Specialty EDI 990
Stacksync validates, transforms, and delivers your 990 transactions automatically — so your team can focus on operations, not EDI compliance.
Validate
Transform
Route
Monitor
Stacksync sends 990 Load Tender Responses from your TMS automatically when your dispatch team accepts or rejects a School Specialty load — ensuring fast response times and carrier compliance.
School Specialty EDI 990 FAQ
Common questions about 990 Response to a Load Tender transactions with School Specialty.
How long does it take to set up School Specialty EDI with Stacksync?
Most suppliers are fully connected and processing live School Specialty 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.
POC from integration engineers
No-code EDI setup
Real-time compliance monitoring
White-glove onboarding