Most marketing teams capture web leads in a disconnected form tool and then re-key (or CSV-import) them into Dynamics 365 — losing source data, creating duplicates, and delaying follow-up. Web-to-Lead Forms for Dynamics 365 closes that gap natively inside Business Central.

ECOSIRE builds this as a per-tenant AL extension installed directly on your Business Central environment. It ships a drag-and-drop form and landing-page builder whose published forms post submissions to a secured ingestion endpoint backed by the Business Central REST/OData v4 API. Each submission is validated, dedup-checked and written via AL table and page extensions to your Contact and Lead/Opportunity records — no middleware, no re-keying.

Behind the scenes, AL event subscribers fire on insert to run routing rules (round-robin, territory, or product-line), a Job Queue entry handles auto-responder email through your configured SMTP/Microsoft 365 connector, and hidden fields capture UTM source/medium/campaign, referrer, page URL and IP. Spam is filtered with configurable CAPTCHA, honeypot and rate-limit checks before any record is created. For teams running Dataverse / Dynamics 365 CE alongside Business Central, ECOSIRE can extend the integration so leads also surface in the Power Platform side via the standard BC–Dataverse virtual table sync.

Because it is build-to-order, the extension is scoped to your fields, your routing logic and your permission sets — then installed, smoke-tested and handed over with documentation. This is not an instant AppSource download; it is a custom extension delivered with an honest lead time, and ECOSIRE supports and updates it as Business Central moves through its semi-annual release waves.