Most finance and sales-ops teams still calculate commissions in a spreadsheet exported from ERPNext at month-end. ERPNext core does have a Sales Partner commission field, but it is a single flat percentage per partner — it cannot express slab or tiered rates, margin-based rules, per-product or per-team schemes, split credit across reps, or the accrual and claw-back accounting that finance actually needs to close the books. The result is off-system math, disputed payouts, commission expense that never hits the GL as an accrual, and hours of reconciliation every period. This is exactly where ERPNext native runs out of road.

We build a proper Frappe app (its own module, installed via bench get-app and bench install-app) that models commission as first-class data inside ERPNext. Configurable DocTypes — Commission Rule, Commission Slab, Commission Plan, and Commission Entry — let you define tiered/slab rates by product, item group, customer group, sales team, or gross margin, with effective-from/to dating and multi-currency support. Server-side calculation runs through hooks.py doc events (on_submit of Sales Invoice and Payment Entry), so commission is computed deterministically on the server, never in a fragile client spreadsheet, and respects your posting rules.

On calculation, the app writes a Commission Entry per rep per source document and posts an accrual Journal Entry (debit commission expense, credit a commission-payable liability) so the expense lands in the period it was earned. When a credit note or refund reduces or cancels the original sale, a scheduler event and the credit-note doc event trigger an automatic claw-back — a reversing Commission Entry and reversing journal — so overpaid commission is recovered cleanly and the ledger stays true. A whitelisted Frappe REST API method exposes calculation and statement data to payroll or external payout systems, and role-profile permissions keep reps able to see only their own statements while finance sees everything.

Reps and managers get a per-rep Commission Statement (a printable Frappe report / print format) showing earned, accrued, clawed-back, and payable amounts by period, drillable to the source invoice. Client scripts add live preview of expected commission on the Sales Invoice form, and scheduler events roll up period totals for payout runs. Everything is native ERPNext — no external service, no data leaving your instance.

Because this is build-to-order, ECOSIRE scopes your exact commission logic first, then builds against your rules on a staging bench. Typical delivery is one working week from confirmed scope. You receive the installable app source, install and configuration on your environment, UAT on staging with a rollback plan, documentation and a training session, and a post-go-live support window — plus the git repository handover so the code is yours. It targets Frappe/ERPNext v15 and v16.