e-Invoicing For Suppliers and How it works

Electronic invoicing (e-invoicing) is the digital exchange of invoice documents between a supplier and a buyer. This automated transfer of invoices is commonly used in eProcurement and online B2B transactions.  

Unlike traditional paper invoices, e-invoices used in eProcurement are generated, sent, received, and processed electronically using cXML, XML, or EDI formatting. These methods eliminate the need for manual data entry and significantly enhance the accuracy and efficiency of the invoicing process. 

The most common way to transmit e-invoices is through cXML or EDI. While XML can be used, it’s less common and mostly found in Oracle platforms 

In this blog, we will cover the benefits of electronic invoicing, key features, how it works, and the difference between EDI and cXML. 

Benefits of Electronic Invoicing 

  • Cost Savings: E-invoicing eliminates the need for paper, printing, postage, and manual handling, significantly reducing administrative and operational costs.

  • Faster Processing and Payments: Digital invoices can be delivered instantly and processed automatically, shortening the invoice-to-payment cycle and improving cash flow.

  • Improved Accuracy: Automation reduces the risk of human error from manual data entry, leading to fewer invoice discrepancies, disputes, or rejections.

  • Enhanced Efficiency: E-invoicing integrates easily with accounting and ERP systems, enabling automated workflows, easier tracking, and better data visibility.

  • Compliance and Standardization: Many e-invoicing platforms support tax and regulatory compliance, especially important in countries where e-invoicing is mandatory.

  • Better Supplier and Customer Relationships: Faster, more reliable invoicing builds trust and fosters smoother business interactions.

The Differences between cXML & EDI

The differences between cXML (Commerce eXtensible Markup Language) and EDI (Electronic Data Interchange) lie mainly in their structure, technology, and usage. Here’s a breakdown:

Format and Readability:

  • cXML is based on XML, making it human-readable and easy to understand or troubleshoot.
  • EDI uses a more compact, fixed-format syntax (like X12 or EDIFACT), which is not human-readable and requires specialized software to interpret.

Technology and Integration:

  • cXML is web-based and designed for modern internet communication (typically over HTTP/S), making it easier to integrate with cloud-based platforms like Ariba.

  • EDI often uses older protocols like AS2, FTP, or VANs (Value-Added Networks), and integration can be more complex and costly.

Flexibility:

  • cXML is more flexible and extensible, allowing companies to tailor documents more easily to their needs.
  • EDI is rigid and highly standardized, which can be an advantage for consistency, but a drawback for adaptability.

Implementation and Cost:

  • cXML is generally easier and faster to implement, especially for companies using modern ERP or e-procurement systems.

  • EDI often requires more upfront investment, maintenance, and technical expertise due to its complexity and legacy infrastructure.

Industry Use:

  • EDI is widely used in manufacturing, retail, and logistics where legacy systems still dominate.
  • cXML is more common in modern procurement and e-commerce systems, particularly for B2B transactions.

In summary, cXML is a more modern, web-friendly approach to document exchange, while EDI remains the traditional standard, especially in industries with deep-rooted legacy systems.

Watch our video to explain how electronic invoices (and purchase orders) work in an e-Procurement system. – Ariba, Coupa, SciQuest, cXML, XML and EDI