One of the central processes that can benefit significantly from automation is the order-to-cash (O2C) process. In this context, eInvoicing plays a crucial role, particularly in subscription management. There are a large number of recurring transactions that need to be managed accurately and efficiently in order to maximize customer satisfaction and operational efficiency.
What is eInvoicing?
eInvoicing is electronic invoicing that reduces administrative work and speeds up payments. The term "electronic" does not mean that an invoice is created digitally, e.g. as a PDF. According to the legislator, it is an eInvoice if the invoice is issued, transmitted and received in a structured electronic format.
EU Directive 2014/55/EU:
This directive obliges public contracting authorities in the EU to accept electronic invoices. The aim is to increase efficiency in public procurement and reduce costs.
Timeline (DE):
- From 01.01.2025, all domestic companies in the B2B sector will be obliged to use e-invoices. Companies must be able to receive and archive e-invoices.
- Until the end of 2026: Paper invoices or electronic invoices that do not comply with the new format can still be issued in the B2B sector, but the invoice recipient's consent is required.
- By the end of 2027: Implementation of eInvoicing for companies with a previous year's turnover of up to €800,000. This is a transitional regulation, which again affects the B2B sector. Small and medium-sized companies have longer implementation deadlines.
- From 2028: All companies in Germany must comply with and implement the requirements for eInvoices in the B2B sector.
(The EU Directive 2014/55/EU provides the legal framework within which the member states implement their national regulations on the e-invoicing obligation. The specific deadlines and requirements may vary from country to country).
Advantages of eInvoicing:
- Cost savingsLess printing and shipping costs.
- EfficiencyFaster and more precise invoice processing.
- SustainabilityReduced paper consumption.
- ComplianceCompliance with legal requirements.
Important aspects that must be taken into account:
- Data securityProtection of the confidentiality and integrity of invoices.
- ArchivingCompliance with statutory retention periods.
- InteroperabilityEnsure that the eInvoicing systems are compatible with each other.
eInvoicing as an important building block in the automation of the O2C process in Subscription Management
The order-to-cash process comprises all steps from order entry to receipt of payment. This process is particularly complex and comprises several critical phases. These include order entry, order processing, invoicing and receipt of payment. Each of these stages is prone to errors and delays, which can have a negative impact on customer satisfaction and the company's cash flow.
The role of eInvoicing in the O2C process
eInvoicing is an essential part of the automation of the O2C process in Subscription Management. By implementing eInvoicing, companies can realize numerous benefits:
- Increased efficiencyElectronic invoices can be created, sent and processed automatically, which significantly reduces manual effort and shortens processing time.
- Error reductionAutomated systems minimize human error in invoicing and processing. This leads to greater accuracy and reliability of invoices.
- Cost savingsBy reducing paper consumption and manual processing, companies can save considerable costs. This also includes savings on shipping and storage costs.
- Improved liquidityFaster invoicing and processing lead to faster receipt of payment, which improves the company's liquidity.
- Ensuring legal compliance: eInvoicing enables companies to comply with legal requirements accurately and efficiently, reducing the risk of penalties and legal issues.

Challenges and solutions
Despite the numerous advantages, there are also challenges when implementing eInvoicing in the O2C process. These include ensuring data security, compliance with legal retention periods and the interoperability ("ability of different systems to work together as seamlessly as possible" [Dude18]) of eInvoicing systems. Companies must implement robust security measures to ensure the confidentiality and integrity of invoice data. In addition, electronic invoices must be archived in accordance with the law to ensure compliance.
Another important aspect is the compatibility of eInvoicing systems. Companies should ensure that their systems are compatible with those of their business partners in order to enable a smooth exchange of invoices.
However, for companies with an established and well-implemented subscription management system, the adjustments resulting from the new eInvoicing standard are minimal.
Companies that already use an effective subscription management system will benefit from the following aspects that facilitate the transition to the new eInvoicing standard:
- Existing automationMany of the automation processes implemented in Subscription Management already meet the requirements of the new eInvoicing standard. These include the automatic creation, transmission and processing of invoices.
- Structured data formatsA well-managed subscription management system often uses structured data formats that meet the requirements of eInvoicing. This means that no major changes to the existing systems are required.
- Compliance and securityCompanies that specialize in subscription management have already implemented measures for data security and legal compliance. These measures are also beneficial for compliance with the eInvoicing standard.
Our assessment
eInvoicing in the O2C process is an excellent example of how automation can help to increase customer satisfaction. Electronic invoicing allows invoices to be processed faster and more accurately, leading to a significant reduction in errors and costs. Companies already using effective subscription management will find the transition to the new eInvoicing standard seamless, as many automation processes and security measures are already built in. These efficiency gains not only help to optimize internal processes, but also significantly improve the customer experience. Customers benefit from smoother processing and greater reliability, which increases their satisfaction and loyalty.
Overall, it is clear that eInvoicing is an indispensable tool for modern companies to maximize both operational efficiency and customer satisfaction.
If you want to prepare your company for the requirements of the new eInvoicing standard and at the same time optimize your subscription management processes, the experts at doubleSlash are at your side. With our extensive experience and our tailor-made monetization solutions, we support you in the successful implementation of eInvoicing and the automation of your business processes.


