The Supplier Information Portal provides step by step instructions on everything suppliers need to transact with AT&T. You can find it within your Ariba Network Account: Company Settings – Customer Relationships – Current – AT&T. Click on the Supplier Information Portal link next to AT&T to access the materials.

AT&T cXML Guide AT&T EDI (ASN) Guide Ariba Network Membership Information


AT&T Corporate Real Estate Supplier Portal is a front-door that provides training materials, self-paced training videos, and a way to request access to our Oracle application which enables suppliers to have real-time access to update supplier profile information such as contacts, addresses, tax IDs, and respond to invitations to participate in RFx's and submit bids.

Job Aids and User Guides
     FAQs      Manage Your Company Information
     Submit a Quote      Generate a Copy of Your Quote
     Approving a Purchase Order      Create and Manage Oracle PIN
     Changes to a Purchase Order      Submit Quote – Fee Options
     The Subcontractor Bid Waiver Form      Respond to a New Round
     REM-CRE TRIRIGA - Supplier Overview      PO Invoice Upload Process
     Custom CRE AE Attachment Query (for AE Suppliers only)
Forms and Templates
      CRE Company Profile, RFX, Change Order User Access Request Form
Recorded Training Videos
Self-Paced Training Videos


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 ASN   Create Invoice
     FAQs   PO Export Process
     PO Invoice Upload Process   Acknowledging PO
     Upload ASN
     View ASN   View Consignment Data
Forms and Templates       iSupplier Access Request Form    PO Invoice Upload Template User Guides       User Guide [External]       Email iSupplier Helpdesk


Electronic Data Interchange (EDI) provides direct
access to AT&T via standard e-commerce
transaction sets (ANSI X12 004010).

If you are interested in obtaining
AT&T Corporate Standard Specifications,
please send email to

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 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.