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Contacts for Supplier PO and Invoice Processing
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Ameren is committed to making electronic procurement a positive experience for our suppliers.
Contact the appropriate Ameren eCommerce Enablement representative for questions:
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Contacts
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Purchase Order and General Procurement Issues
Suppliers should contact their buyer in the Ameren Supply Chain Support Line:
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Supply Chain Process & Performance
Email: ProcessPerformance@ameren.com
Phone: 314.554.2821
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Invoices
Suppliers with payment inquiries should contact the Accounts Payable Department:
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Email: accountspayable@ameren.com
Hotline: 314.554.4468
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