This is a build-to-order Business Central extension, not an instant AppSource download. ECOSIRE designs, builds, installs and supports a per-tenant AL extension on your Dynamics 365 Business Central environment so your finance team can exchange Peppol e-invoices without leaving the Posted Sales Invoice and Purchase Invoice pages they already use.

The connector ships as a signed AL app deployed via the Extension Management page (per-tenant, so it never collides with your other customizations or AppSource apps). It adds page extensions to the standard invoice documents, table extensions to persist the Peppol participant ID, transmission status, message ID and acknowledgment, and a dedicated "E-Invoice Outbox" page. Outbound documents are serialized to UBL 2.1 in the correct profile — Peppol BIS Billing 3.0, XRechnung (Germany, with the Leitweg-ID routing field) or FatturaPA (Italy) — and handed to your chosen certified Peppol Access Point over its REST API. Inbound invoices are pulled and matched into Purchase Invoices for review.

Under the hood we use event subscribers on the posting routines (so a Peppol document is generated at the moment of posting, never by an unreliable manual export), a Job Queue entry for scheduled send/receive polling, and a participant-lookup call against the SML/SMP directory to confirm the receiver is reachable and which document types they accept before you transmit. Validation runs against the published Schematron/EN 16931 rules so malformed invoices are caught in BC, not rejected days later by the network.

We deliver scoped permission sets, a setup guide and admin training. Because it is your tenant's own extension, you keep the source, and ECOSIRE provides the build, the deployment and ongoing support. Optional Power Platform / Dataverse surfacing of transmission status is available on request.