Business Central handles one-off sales orders well, but it has no native concept of a subscription lifecycle: no recurring contract object, no usage metering, no proration on mid-cycle upgrades, and no scheduled deferred-revenue recognition. Finance teams at SaaS, services and rental businesses end up re-keying renewals into recurring sales invoices, tracking MRR in spreadsheets, and recognising revenue manually — which breaks the moment you offer trials, upgrades, or metered pricing.

ECOSIRE builds Subscription & Recurring Billing as a per-tenant AL extension installed directly on your Business Central environment (cloud SaaS or on-prem). It adds a real subscription data model — table extensions and new tables for contracts, billing schedules and usage records — wired into your existing Customer, Item and G/L Account masters. New role-centre pages, list pages and the Job Queue drive the automation.

Recurring invoices generate on a schedule via a scheduled Job Queue entry that posts standard Sales Invoices, so VAT, dimensions, payment terms and your e-invoicing flow keep working unchanged. Usage-based lines pull from metered records you push in over the BC OData/REST API. Proration, upgrades, downgrades and cancellations are calculated against the contract's billing period. Deferred revenue is recognised on a configurable schedule into the right G/L accounts. Failed payments trigger a dunning sequence with retry cadence.

This is not an instant AppSource download. ECOSIRE scopes your billing rules, builds the extension, installs it as a per-tenant extension, configures permission sets and the Job Queue, migrates your existing recurring customers, and supports it afterwards. You own a clean, upgrade-safe extension tailored to how your business actually bills — with an honest delivery lead time, not a generic app you bend your process around.