Supplier Onboarding
What To Expect
All non-media suppliers supporting IPG’s United States agency operations should expect to receive a system generated email invitation to begin the registration process with IPG via the SAP Ariba Network. This email will include the following attributes:
From: ‘IPG Corporate’ with a domain including ariba.com
Subject: Invitation: Register to become a supplier with [followed by specific IPG agency name, etc.]
A daily automated reminder email is sent after this initial invitation to register. If you are not able to locate this email, please check your spam or other email folders, or contact your local IT support desk to adjust your email settings for restricted domains. Suppliers will have 9 business days to complete the form after the initial invitation is received.
If you have previously done business with the Interpublic Group of Companies or its subsidiaries, you should have received an email prior to the invitation with instructions for validating and updating the information we currently have on file.
In preparation for receiving an invitation, please collect the following documents:
- Bank support: A recent bank statement or signed letter on bank letterhead that includes the account holder name and account/routing number details, voided check, OR deposit slip.
- Tax document: W9, if a non-US supplier your W8 form is available via the Comply process outlined below. Tax documents must be signed and dated within the last two years.
- Support for any third-party management arrangements, if applicable
- Diversity certificates, if applicable
Getting Started

