Transacting with PSE on the Ariba Network

PSE uses Ariba, a third-party electronic procurement tool, to manage our supplier on-boarding process, issue purchase orders (POs), receive invoices and manage contracts. All suppliers are required to register on the Ariba Network to transact with PSE.

PSE’s supplier on-boarding process ensures that suppliers meet all criteria required by PSE and are set up appropriately on the Ariba Network so that invoices can be managed and paid efficiently. As a part of the mandatory set up process, you will receive an invite email from PSE with two questionnaires to be completed and next steps to fulfill the on-boarding requirements. All suppliers are required to register for an Ariba account, complete the Supplier Profile Questionnaires, and accept the Ariba Relationship Request sent to your Ariba account by PSE. Questions regarding Ariba registration can be sent to

Suppliers should be aware that Ariba offers two registration options: the Standard Account and the Enterprise Account. The Standard Account will not incur any fees for the supplier, while the Enterprise Account will have associated fees due to the market visibility and increased sales opportunities offered to suppliers through the network. Suppliers should ensure that the appropriate Ariba Account type is selected. Suppliers that select the Enterprise Account will receive an invoice directly from Ariba. When registering on Ariba, suppliers create an agreement between their organization and Ariba to which PSE is not a party. PSE cannot accept accountability if the incorrect account type is selected, nor will PSE accept liability for any fees incurred.

Thank you for your interest in forming a partnership with PSE to serve our community efficiently, effectively and safely.