E-invoicing · ERP

Electronic invoicing with multiple ERPs starts with data quality

Electronic invoicing integrations expose inconsistent customer records, company identifiers and document flows.

Understanding the flow

Reliable invoicing starts before transmission

  1. 1

    Source systems

    Invoices and party data

  2. 2

    Validation

    Quality rules and owners

  3. 3

    Integration

    Transforms and retries

  4. 4

    Exchange

    Submission and status handling

Simplified teaching diagram. Steps and technical choices depend on the context; this is not a delivered client architecture.

The risk is not only the choice of a platform

A company with several ERPs, subsidiaries or management applications can hold several versions of the same customer, incomplete identifiers, diverging addresses and different invoicing rules. A new exchange interface does not erase those gaps; it can make them visible at the worst moment.

For a finance director, the real question is: which systems can produce data that is reliable enough, who corrects anomalies, and how are rejections followed through to resolution?

What must be known before any integration

Map the sources of invoices, credit notes and statuses, the issuing companies, third-party master data and return flows. An invoice issued by one ERP can depend on an order placed elsewhere, a customer maintained in a CRM, or documents handled in a document system.

Controls typically cover party identity, references, amounts and consistency between documents. Exact requirements must be validated at the date of the project with the competent parties; this resource is not a legal interpretation of the reform.

Connect ERPs without multiplying manual corrections

An integration layer can normalise exchanges, trace the origin of fields, apply validated rules and return errors to the right owner. APIs, batch processing and ETL each have a place depending on the systems. The choice depends on volumes, timing and the ability to restart processing.

The project must plan for failures, duplicates, rejections and recovery. When a flow returns an error, someone must know what to correct, in which system, without arbitrarily changing data inside the exchange tool.

Business teams remain central

Accounting, sales administration, sales, IT and partners have to agree on definitions and responsibilities. A vendor should not turn a poor master-data set into a series of invisible transformations that nobody will be able to maintain.

A follow-up board can distinguish invoices that are ready, rejected, under correction and transmitted, according to states actually provided by the systems. Data used to invoice must remain auditable and reconcilable with management entries.

What Mahthildis can lead

Paulo Castro can map the data, frame gaps between ERPs, design interoperability, coordinate publishers and integrators, lead the migration of flows and implement a defined technical scope. Scope and responsibilities are set with the client before commitment.

Automating incorrect data faster does not make it correct. Data governance and the handling of anomalies sit at the heart of the project. This article is not regulatory or legal advice.

About these field situations

These situations combine lessons from Paulo Castro's professional experience. Organisations and operational details are not identified. They illustrate issues and possible approaches, not a claim that all suggested solutions were delivered together or that they are Mahthildis client references.