Coupa Supplier Portal (CSP)

Your one-stop platform for sourcing, contract lifecycle management and supplier information
Three people work together at a desk, one typing on a laptop while others review documents and take notes. The scene suggests a collaborative office or business meeting.

OCS implements Coupa: Purchase 2 Pay

OCS launched Coupa Source to Contract (S2C) in July 2025. The S2C platform allowed us to, request bids, evaluate stakeholder responses, create contracts, and onboard suppliers all from one place.  

We are now implementing Coupa Purchase 2 Pay (P2P). This will enable you to trade with OCS electronically. You will receive purchase orders directly from our Coupa P2P system and you will be expected to send electronic invoices via the Coupa Supplier Portal (CSP) or directly from an email. This will drive process efficiency for both OCS and our trusted suppliers and give greater visibility into you invoice status. 

Within the CSP you will also be able to:  

view purchase orders
create and maintain catalogues
send electronic invoices and advance ship notices (ASNs)
check the status of your invoices
communicate with OCS directly with comments within the system 
Four icons with text under each: gathering supplier data, working with suppliers on cXML, supporting suppliers with CSP and resources, and continuing partnerships for faster, efficient transactions.

What happens next

The P2P rollout will take place in phases. We will notify you when it becomes relevant to you and share further details and instructions at that time.

Two people are looking at a laptop screen displaying a login page for an online portal. One person is seated with a hand on the keyboard, while the other stands nearby. The focus is on the laptop screen.

Access the Coupa Supplier Portal

Click the button below to access the Coupa Supplier Portal. We recommend bookmarking the page for quick and easy access in the future.

New to Coupa? Please register using the email address of your primary OCS contact.
Already using Coupa? Please provide the email address of your current CSP administrator.
Four people sit around a table in a modern office, two in focus smiling and talking while working on laptops. The atmosphere appears friendly and collaborative.

What is the Coupa Supplier Portal (CSP)?

The Coupa Supplier Portal (CSP) is a secure, easy-to-use platform that simplifies how we work together. It allows our suppliers to manage company information, access sourcing opportunities, submit bids, and provide quotes all in one place.

By using the CSP, suppliers benefit from greater visibility, improved communication, and faster, more efficient engagement with OCS.

Additional Resources

Explore the helpful videos below to get started and make the most of the Coupa Supplier Portal (CSP).

Supplier Resources

Discover our Supplier Hub, SRM framework, access essential guidance and reach out to our OCS Procurement team with any enquiries.

Who can I contact for support?

Click the button below to email our support team for assistance with the Coupa Supplier Portal.

Get Support