PASSWORDMANAGEMENT
Welcome! The ÌÇÐÄÉÙÅ® Accounts Payable department is responsible for processing payments for all campus business units. This includes payments to suppliers, employee reimbursements including travel, hospitality, and ProCard.
ÌÇÐÄÉÙÅ® is a net 30 campus, which means we have 30 days after the invoice date to pay the supplier. Once an invoice or other payment request is received by Accounts Payable, it is typically processed within 15 business days.
Accounts Payable generally processes payments two days a week. This schedule can change due to holidays or other department/campus needs.
To ensure timely payment, all invoices must be submitted directly to Accounts Payable. There are two accepted submission methods:
Email Submission: Send the invoice to the appropriate email address listed below. Be sure to include the Purchase Order (PO) number in your email.
Supplier Portal (CSUBUY): Suppliers may submit invoices through the CSUBUY Supplier Portal. For step-by-step instructions, please refer to the Supplier Guide.
Once the invoice is routed for approval, it becomes a voucher.
To check if a PO has associated vouchers, search for the PO number in the search bar at the top of the CSUBUY homepage. Associated vouchers will be displayed.

Administrative Building 4600
333 S. Twin Oaks Valley Road,
San Marcos, CA 92096-0001
(760) 750-4475
Monday – Friday
8:00 a.m. – 5:00 p.m.