Welcome to
E-Invoicing for Guardian Industries

Experience greater efficiencies from
Guardian Accounts Payable with Coupa’s free e-invoicing platform.

John Buckner

Vice-President, Global Strategic Sourcing & Procurement

Message from John Buckner, Vice-President Global Strategic Sourcing & Procurement, Guardian

Guardian would like to inform you that we are moving to paperless e-invoicing. This is a critical milestone as we pursue our vision of improving the efficiency and effectiveness of our procure-to-pay process. 

Coupa helps us by streamlining electronic requisitions and reducing errors and the time it takes to process an invoice, helping us to pay you in accordance with our agreed terms. 

We would like to invite you to register to the free Coupa Supplier Portal (CSP) which provides several benefits for our suppliers:

• CSP will allow you to track your POs, invoices, and payments in one place.  

• CSP also allows you to create invoices directly from POs and eliminate the need to send invoices separately.

• CSP shortens the payment cycle by instant invoice validation and faster payment processing.

Once electronic invoicing is initiated through Coupa, please ensure that you discontinue sending paper and PDF invoices. 

Best Regards,
John Buckner
Vice-President, Global Strategic Procurement

No more chasing Accounts Payable.

Real-time status updates online and through SMS

Direct collaboration with your buyer right on the invoice

No A/P data entry = Expedited invoice processing and approvals


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Instant Invoice Validation

Get notified of errors before you send your invoice, reducing issues that cause late payments.

Expedited Payment Processing

Save time and effort by converting purchase orders directly into invoices with a click of a button. Coupa delivers your invoice directly to your customer to enable them to pay you faster.

Real-time Status & Collaboration

Turn on real-time SMS notifications for new orders, invoice status, and to collaborate electronically on transactions. Get full transaction history to reconcile POs, Invoices, and Payments.

Compliant e-Invoicing

Coupa’s tax-compliant invoice software makes going global a breeze. Now you can automatically validate country-specific requirements before issuing an invoice.

How it works


Coupa Supplier Portal

(Low volume of invoices)

The Coupa Supplier Portal is a free tool for suppliers to manage purchase orders, invoices, catalogs and more.

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(High volume of invoices)

Coupa’s integrated e-invoicing accepts a data file in multiple formats from your accounting system.

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