Existing Suppliers
Need to update information or have a question? We’re here for you. Select the appropriate option below.
Invoice Inquiries
If you have a question about an open invoice, outstanding payment, or need to submit a W-9, start here.
Banking Changes
Need to make a change to your company banking information? No problem. We'll walk you through the steps.
Supplier Questions
Have a question about doing business with us not related to registration or payment? Feel free to ask.
Looking to Start Doing Business with AEP?
We recognize that a strong, diverse supplier community is essential to economic vitality and look to conduct business with competitive, diverse suppliers. Take the first step by registering through our Ariba system.
For questions or further support, contact AEP's Supply Chain Solution Center at 833-493-0821.