The unified extensible e-invoicing integration framework extends the existing Electronic Invoicing service by introducing:

A unified outbound and inbound document model (based on international standards such as UBL and PEPPOL).
A standardized submission and response pipeline and API for e-invoicing documents and related statuses.
A clear extensibility model that allows external ASPs, ISVs, Microsoft partners, and customers to implement their own integrations without requiring Microsoft to build or maintain provider specific connectors.

With this framework, Microsoft defines the data (format) contract, integration pattern, and lifecycle handling, while external e-invoicing ASPs (for example, PDPs, PAs, or PACs) implement the required endpoints and data transformations on their side.

This approach enables:

Support for multiple service providers under a consistent integration model.
Faster onboarding of new providers and markets.
Reduced vendor lock-in for customers.
Better alignment with country-specific regulatory requirements without Microsoft acting as an authorized e-invoicing service provider.

Important clarifications (out of scope):

This feature does not make Microsoft an Authorized Service Provider (ASP / PDP / PA / PAC, PEPPOL access point).
The feature does not include built‑in connectivity to e‑invoicing providers.
Customers must continue to use third‑party e‑invoicing providers for “last‑mile” submission to tax authorities or clearance platforms.
Integration with a specific ASP is the responsibility of the provider, customer, or ISV, using the established integration framework.

In the initial phase, Microsoft defines the data contract and API specification and supports these in Dynamics 365 ERP and Electronic invoicing service. Microsoft collaborates with a selected set of ASPs to build integrations using this standard data contract and API specification, and to validate the integrations for a subset of countries or regions. Customers will be able to choose from these providers based on their countries or regions of operation and configure the integrations within their ERP environments.

Moving forward, we will be:

Extending the coverage by adding more countries or regions; and
Engaging with more ASPs and ISVs to expand the ecosystem.