Property owners and managers running on Dynamics 365 Business Central usually end up tracking leases in spreadsheets while invoicing manually in BC — two systems that drift apart every month. This is a build-to-order AL extension that closes that gap by modelling Properties, Units and Tenants as first-class records inside your existing Business Central company, so the rent roll and the general ledger are the same source of truth.

ECOSIRE builds the extension to your leasing rules, then installs it as a per-tenant extension on your Business Central environment (cloud SaaS or on-prem) — not a generic AppSource download. New tables (Property, Unit, Lease, Service Charge) and table/page extensions on Customer and Posting Setup are delivered through AL, wired into the GL with standard posting groups, and protected by dedicated permission sets so leasing staff see only what they should.

The lease engine drives the money. A job queue entry generates recurring rent and service-charge sales invoices on each lease's billing cycle, applies contractual escalations (fixed %, CPI-style or step), and posts them through normal BC sales documents so VAT/tax, dimensions and customer ledger entries all behave natively. CAM / service-charge pools are accrued through the year and reconciled against actuals, with the variance billed or credited per tenant by pro-rata share. Deposits are held as a tracked liability and released or applied on move-out; arrears and aging surface through the customer ledger and a leasing-specific dashboard.

Because it is genuine AL, the rent roll is reachable over the BC REST/OData API for Power BI and Power Platform, and event subscribers keep your logic intact through Microsoft's monthly updates. ECOSIRE scopes, builds, installs, validates and supports the whole thing.