5 Best Practices for a Successful Invoice Digitization Project
The widespread adoption of e-invoicing between VAT-registered businesses will progressively come into effect starting September 1, 2026.
By this date, all businesses must be able to receive electronic invoices. Large companies and mid-sized enterprises will also have to issue their invoices in electronic format. From September 1, 2027, this issuance obligation will be extended to SMEs, VSEs, and micro-enterprises.
More than just a digital transition, the reform profoundly transforms invoicing processes. It mandates structured formats, such as Factur-X, UBL, or CII, and relies on a new ecosystem comprising Approved Platforms, compatible solutions, and a Public Invoicing Portal re-focused on the directory and data hub.
For businesses, it's therefore not just about replacing a paper or PDF invoice with an electronic invoice. It requires rethinking order-to-cash and procure-to-pay flows, adapting tools, ensuring data reliability, training teams, and securing compliance.
Here are 5 best practices for a successful invoice digitization project and to transform this regulatory obligation into a performance driver.
1. Understand the Stakes and the New Regulatory Framework
The first step is to fully understand what the reform truly mandates.
Mandatory electronic invoicing is based on two main components: e-invoicing and e-reporting.
E-invoicing involves the issuance, transmission, and reception of electronic invoices between VAT-registered businesses established in France. Invoices will have to pass through interoperable platforms and comply with structured formats.
E-reporting involves the transmission of data to the tax authorities concerning certain transactions not directly covered by e-invoicing, including B2C sales, certain international operations, and payment data where applicable.
Businesses will therefore need to be able to manage:
- incoming electronic invoices;
- outgoing electronic invoices;
- transaction data;
- payment data;
- lifecycle statuses;
- regulatory formats;
- exchanges with their Approved Platform;
- the transmission of mandatory data to the tax authorities.
The role of the stakeholders also needs to be clarified.
A PA – Approved Platform is an operator registered by the tax authorities. It allows for the issuance, reception, transmission, and processing of electronic invoices, while also ensuring the transmission of mandatory data.
The PPF, for its part, is focused on two main functions: the national directory and the data hub.
You can find a complete definition on our dedicated page: PA – Approved Platform.
Best practices to implement
To avoid scoping errors, it is essential to establish clear regulatory monitoring.
Technical specifications, standards, formats, and use cases are evolving. Your project must therefore rely on reliable, up-to-date, and shared sources across all relevant teams.
It is also recommended to document your choices from the outset:
- chosen formats;
- transmission channels;
- statuses utilized;
- roles of internal teams;
- e-invoicing scope;
- e-reporting scope;
- business use cases;
- rejection management rules;
- archiving procedures;
- integration with your existing tools.
Finally, teams need to upskill. The reform affects finance, accounting, IT, sales administration, purchasing, debt collection, and sometimes sales teams.
Organizing internal sessions, demonstrations, and webinars helps align stakeholders and limit misunderstandings.
To delve deeper into these topics, check out our ICD International webinars, including replays dedicated to DEMATRUST and the choice of an Approved Platform.
2. Conduct a preliminary internal audit
Before choosing a solution or launching a deployment, you need to audit your existing flows.
This step is too often underestimated. Yet, it is crucial for the project's success.
Electronic invoicing will integrate into existing processes: issuing customer invoices, receiving supplier invoices, validations, reconciliations, follow-ups, payments, disputes, archiving, and tax reporting.
Without precise mapping, the risk is choosing a solution that seems compliant on paper but doesn't cover the operational realities of the company.
The audit should analyze:
- customer flows;
- supplier flows;
- domestic B2B flows;
- B2C flows;
- international flows;
- invoice volumes;
- current channels;
- the formats used;
- the tools involved;
- the validation workflows;
- the checkpoints;
- the recurring issues;
- the special cases;
- the archiving needs;
- the e-reporting obligations.
It is also necessary to analyze the existing systems: ERP, invoicing software, accounting tools, EDI, supplier portal, business solutions, or specific internal tools.
Checklist for your e-invoicing audit
Your audit should answer several concrete questions.
What types of invoices do you process today?
What channels do you use?
What formats are accepted or generated by your tools?
What volumes are involved?
What data is missing or unreliable?
Which flows fall under e-invoicing?
Which flows fall under e-reporting?
Which ERPs need to be connected?
Which processes need to be modified?
Which statuses need to be leveraged?
Which specific use cases need to be addressed?
Which teams need to be involved?
This step helps identify the gaps between the current state and the reform requirements.
It also helps prioritize projects: data quality, ERP integration, formats, e-reporting, archiving, automation, workflows, or change management.
ICD International offers e-invoicing support to help companies audit their processes, define their project scope, and build a realistic roadmap.
3. Define a clear digitization strategy
Once the audit is complete, the company must define its strategy.
Invoice digitization should not be managed solely as a regulatory project. It can also become a driver for operational optimization.
Objectives must be clear and measurable.
They can focus on:
- regulatory compliance;
- processing automation;
- reducing administrative costs;
- reducing errors;
- improving validation times;
- reducing DSO;
- ensuring payment reliability;
- enhanced visibility into statuses;
- reducing disputes;
- securing archiving;
- enhanced financial management.
The strategy must also define the project scope.
Not all companies start at the same level of maturity. Some already have an EDI, a supplier portal, or a well-structured ERP. Others still manage a significant portion of their workflows via email or PDF.
Therefore, it's necessary to decide what will be prioritized:
- customer invoices;
- supplier invoices;
- domestic B2B;
- B2C;
- international;
- credit notes;
- advance payments;
- subscriptions;
- self-billing;
- direct debits;
- multi-entity flows;
- payment data;
- archiving;
- reporting.
Standardize formats and processes
The strategy must also incorporate formats.
Structured formats like Factur-X, UBL, or CII enable automated data processing and prevent re-entry.
The choice of format should be made based on your environment, tools, partners, and integration strategy.
Factur-X can be relevant for some businesses as it combines a readable PDF with structured data. UBL and CII are more geared towards structured system-to-system exchanges.
The important thing is not to unnecessarily multiply formats without a clear rationale.
Associated processes also need to be standardized:
- validation rules;
- status management;
- rejection handling;
- order/invoice reconciliation;
- dispute management;
- reminders;
- archiving;
- payment tracking;
- dashboards.
Successful dematerialization relies as much on business rules as it does on the technical solution.
4. Choosing the most suitable partner
Choosing the Approved Platform is a strategic step.
An Accredited Platform (AP) does more than just transmit invoices. It must secure your exchanges, ensure compliance, manage formats, transmit mandatory data, process statuses, and integrate with your information system.
It is therefore important to compare solutions based on concrete criteria.
The main selection criteria are:
- registration as an Accredited Platform;
- compliance with regulatory formats;
- issuing and receiving capability;
- interoperability with other platforms;
- ERP and API integration;
- e-reporting data management;
- security and traceability;
- archiving;
- reliable audit trail;
- dashboards;
- status management;
- validation workflows;
- order/invoice reconciliation;
- dispute management;
- project support;
- support quality;
- ability to handle business use cases.
The right partner must understand regulations, technical processes, and your company's business realities.
To learn more, read our dedicated article: How to Choose Your Certified Platform?.
Why Choose DEMATRUST?
DEMATRUST is ICD International's electronic invoicing solution, designed to help companies comply with the reform.
DEMATRUST covers the main needs related to electronic invoicing:
- issuing electronic invoices;
- receiving supplier invoices;
- management of regulatory formats;
- compliance checks;
- transmission of mandatory data;
- e-reporting;
- status tracking;
- ERP integration;
- archiving;
- reconciliation;
- process automation;
- team support.
For VSEs and SMEs looking to simplify their operations, ICD International also offers DEMATRUST Light, an offer designed to simplify compliance without a complex project.
Are you looking to validate your strategy and selection criteria? Schedule a DEMATRUST demo with our experts.
5. Managing Change and Continuous Optimization
The success of a digitalization project doesn't solely depend on technology.
It also depends on team buy-in and the company's ability to evolve its processes.
E-invoicing changes the work habits of finance, accounting, sales administration, purchasing, and IT teams.
Employees will need to understand:
- the new formats;
- the new workflows;
- the roles of the PA and PPF;
- the lifecycle statuses;
- the rejection rules;
- the e-reporting obligations;
- the new dashboards;
- the error handling procedures;
- the impacts on customers and suppliers.
Change management must therefore be integrated from the start of the project.
It is recommended to train teams, document procedures, and plan for a gradual ramp-up phase.
Establish management indicators
To effectively manage the project, KPIs must be defined.
These indicators help measure the impact of digitalization and identify areas for improvement.
The main KPIs to track can be:
- rejection rate;
- average validation time;
- average processing time;
- automated invoice rate;
- invoice anomaly rate;
- number of disputes;
- dispute resolution time;
- DSO;
- compliant e-reporting rate;
- on-time invoice payment rate;
- invoice volume per channel;
- successful ERP integration rate.
These indicators enable a shift from a compliance project to a continuous improvement project.
Manage the transition in phases
To limit risks, it is best to deploy gradually.
The company can start with a priority scope: an entity, a type of flow, a customer portfolio, a group of suppliers, or a specific process.
This phased approach allows for testing, correcting, stabilizing, and then expanding.
It also facilitates team support and the management of field feedback.
The testing phases should verify:
- the formats;
- the data;
- the connections;
- the statuses;
- the rejections;
- the ERP integrations;
- the workflows;
- the dashboards;
- the specific use cases.
The more structured this phase is, the more controlled the transition to production will be.
Optimize after deployment
Dematerialization doesn't stop at launch.
Once the flows are in production, the company must continue to optimize its processes.
Areas for improvement can include:
- reducing rejections;
- Data reliability;
- Improved routing via the directory;
- Automating validations;
- Better utilization of statuses;
- Optimizing reminders;
- Reducing disputes;
- Improving cash flow forecasts;
- Updating business rules;
- Adapting to regulatory changes.
Status data becomes a valuable asset. It allows you to know if an invoice has been issued, received, rejected, accepted, scheduled for payment, or paid.
When well utilized, they improve financial visibility and strengthen cash collection management.
Conclusion: Anticipate and Transform
The e-invoicing reform is not just a regulatory constraint.
It's an opportunity to standardize processes, automate invoice processing, ensure data reliability, secure compliance, and improve financial performance.
To make your project a success, the 5 best practices are clear:
- Mastering the regulatory framework;
- Conducting a preliminary internal audit;
- Defining a dematerialization strategy;
- Choosing a suitable Approved Platform;
- Supporting change and continuously optimizing.
Companies that anticipate will have a real advantage. They will reduce rejection risks, streamline exchanges with their clients and suppliers, and transform their compliance into a lever for sustainable performance.
Do you want to prepare for the transition to e-invoicing? Discover DEMATRUST, consult our webinars, or speak with our experts via the ICD International contact page.
