Skip to content
X12 Outbound

USPS (United States Postal Service) X12 990 Response to a Load Tender

X12 990 (Response to a Load Tender) is the EDI transaction exchanged between USPS (United States Postal Service) and its trading partners. Stacksync handles full compliance, mapping, and real-time delivery.

Segments
5
Loops
0
X12 990
All partners ↗

Schema reference

5 segments · 0 loops · X12 990 Response to a Load Tender

ISA

ISA Interchange Control Header

GS

GS Functional Group Header

ST

Transaction Set Header

B1

Beginning Segment for Booking or Pick-up/Delivery

SE

Transaction Set Trailer

Trading partners

1+ trading partners.
And every channel covered.

We connect to every major retailer, distributor, and 3PL on the EDI network. Type to search the directory, or browse the full catalogue.

Browse the full directory

USPS (United States Postal Service) EDI 990 FAQ

Common questions about 990 Response to a Load Tender with USPS (United States Postal Service).

What is X12 990 Response to a Load Tender?
X12 990 (Response to a Load Tender) is the EDI transaction set used to exchange response to a load tender data. USPS (United States Postal Service) requires it from trading partners.
Does USPS (United States Postal Service) require 990 for trading partners?
Yes — USPS (United States Postal Service) supports X12 990 Response to a Load Tender. Stacksync handles the full integration so your team can focus on operations.
How fast can I integrate USPS (United States Postal Service) 990 with Stacksync?
Most companies go live with USPS (United States Postal Service) 990 on Stacksync in days. Pre-built mappings, no-code setup, and real-time monitoring make EDI compliance straightforward.

Ready to automate your USPS (United States Postal Service) EDI?

Most teams go live in days, not months. Talk to our team and we'll walk you through your specific setup.