The AT&T Supplier Portal (SUS) provides secure online access directly
into AT&T for the supplier to view and process e-commerce

AT&T Supplier Portal (SUS) User Guide AT&T Supplier Portal (SUS) Reference Guide


iSupplier Portal is an Internet self-service tool which enables suppliers to have real-time access to
procure-to-pay transactions such as purchase orders, invoices, and payment status. iSupplier Portal
is fully integrated with Oracle 11i and allows the supplier to export purchase order details and upload
purchase order related invoices.

Job Aids
     Create Invoice   FAQs
     PO Export Process   PO Invoice Upload Process
Forms and Templates       User Setup Request Form    PO Invoice Upload Template User Guides       User Guide [External]
iSupplier Helpdesk


Electronic Data Interchange (EDI) provides direct
access to AT&T via standard e-commerce
transaction sets (ANSI X12 004010).
The following documents contain the AT&T
Corporate Standard Specifications for the
New Horizons Wireline EDI and provide the format
and establish the data contents for an Electronic
Data Interchange (EDI) environment.

AT&T Purchase Order Transaction Set 850 AT&T Purchase Order Acknowledgment Transaction Set 855 AT&T Invoice Transaction Set 810 AT&T Applications Advice Transaction Set 824 AT&T Product Activity Data Transaction Set 852 AT&T Receiving Advice-Acceptance Certificate Transaction Set 861

Payment and remittance information is
available online to suppliers on the
AT&T Supplier Payment Status Facility site.


Payment Status Inquiries

If you have questions concerning a payment received
or information on the payment site, please send an
email to

If you have questions concerning an invoice that is
not in the payment site, please contact the
Supply Chain Service Center at 1-800-366-0418.
When prompted select Option 2, then when prompted
again select Option 3 to reach the invoice support team.