Ecuadorian companies that run ERPNext hit a wall the moment they need to bill legally: the Servicio de Rentas Internas (SRI) requires every factura, nota de credito, nota de debito, comprobante de retencion, and guia de remision to be issued as a signed comprobante electronico, transmitted to the SRI web services for authorization, and delivered to the customer as XML plus a RIDE PDF. ERPNext core has no concept of a clave de acceso, no XAdES-BES signature over the SRI XML schema, no RUC/cedula validation against Ecuadorian rules, and no built-in IVA 15%, 5%, 0%, or ICE handling wired to the SRI tax codes. Accountants end up re-keying every invoice into a separate government portal or a third-party facturador, breaking the single source of truth ERPNext is supposed to give them.

ECOSIRE builds a proper Frappe application (its own app installed on your bench, not a pile of loose customizations) that closes that gap end to end. We add DocTypes for SRI configuration, ambiente (pruebas/produccion), establishment and emission point, and a signing certificate (.p12) vault, plus a comprobante log that stores the generated XML, the clave de acceso, the authorization number, and the SRI response for every document. A hooks.py doc-event on Sales Invoice on_submit builds the XML for the correct comprobante type, computes the 49-digit clave de acceso (date, tipo comprobante, RUC, ambiente, serie, secuencial, codigo numerico, tipo emision, plus the verification digit), signs it with XAdES-BES using your certificate, and calls the SRI recepcion and autorizacion web services. Server scripts and whitelisted methods expose retry, cancel (anular), and re-download so a rejected voucher can be corrected and resubmitted without leaving ERPNext.

Technically it stays native to the platform. Tax mapping rides on ERPNext Item Tax Templates and Tax Categories so your existing IVA and retention rules keep working, with a translation layer to the SRI codigo/codigoPorcentaje values and withholding tax codes for retenciones en la fuente and IVA retenido. The RIDE PDF is a Frappe Print Format so your team can restyle it without touching Python. Role profiles and permission rules keep certificate and SRI-credential access to authorized finance users, scheduler events poll pending authorizations and re-poll documents left EN PROCESO by the SRI, and every submission is idempotent and logged for audit. The whole thing is exposed over the Frappe REST API and whitelisted methods so a POS, a custom portal, or an external system can trigger issuance programmatically. It targets ERPNext and Frappe v15 and v16.

Because this is build-to-order, nothing ships as an instant download. You start with a short scoping call where we confirm your comprobante types, tax matrix, establishments/emission points, certificate provider, and whether you need contingencia (offline emission) handling. We build against your requirements, test on a staging bench in the SRI ambiente de pruebas, run UAT with your accountant, and then install on production and hand over the git repository. Typical delivery is one working week from confirmed scope, and every engagement includes a post-go-live support window while your team issues its first real vouchers.