European fashion brands selling on the Zalando Partner Program quickly hit a wall with ERPNext out of the box. ERPNext has no concept of a Zalando order, a Zalando Fulfillment (ZFS) stock pool, or a monthly Zalando settlement — so teams end up rekeying orders from the Zalando Partner portal into Sales Orders by hand, updating stock and prices in two places, and reconciling payouts in spreadsheets. As volume grows, oversells, stale prices, missed ship-by SLAs and unexplained settlement deltas become a weekly fire drill. ERPNext's native marketplace/e-commerce integrations don't speak the Zalando Partner APIs, and generic connectors ignore the wholesale and partner-program models that European fashion actually runs on.

ECOSIRE builds a proper Frappe application — a versioned app installed on your bench alongside ERPNext — that makes Zalando a first-class channel inside your existing instance. We model the integration with dedicated DocTypes (for example Zalando Settings, Zalando Article Map, Zalando Order, and a settlement-line child table), wire behavior through hooks.py document events and scheduler events, and expose whitelisted server methods for on-demand actions. Inbound Zalando orders are pulled on a scheduled job and mapped to standard ERPNext Sales Orders (and Delivery Notes / Sales Invoices where you want them), with SKU resolution against your Item master so nothing is created blind. The connector supports both the partner-fulfilled model and ZFS, keeping the two stock realities distinct instead of collapsing them.

Technically, inventory and price sync run two-way and idempotently: a doc_event on Item / Item Price and Bin changes queues an outbound push to Zalando, while a scheduler event reconciles availability the other direction so ERPNext and the Zalando catalog converge rather than fight. Article and listing data is pushed from ERPNext Item attributes (EAN/GTIN, size, colour, brand, price) through the article-map DocType, so your merchandisers manage listings from the system they already use. Settlement files and payout data are ingested into settlement DocTypes and reconciled against the originating Sales Invoices, surfacing commission, returns and fee deltas as a report you can actually close the books against. Everything respects ERPNext permissions — we ship role profiles and a dedicated role so channel operators see Zalando data without touching your GL, and we use client scripts only for the UX niceties (buttons, filters) on top of server-side logic.

Because this is build-to-order, you are not downloading a fixed marketplace app and hoping it fits. We start with a short scoping call, confirm which flows you need (order sync only, or the full inventory/price/article/ZFS/settlement scope), and agree the exact DocType and field mapping against your ERPNext v15 or v16 instance. Typical delivery is one working week from confirmed scope. You get the installable source for your version, deployment on a staging bench for UAT with a rollback plan, technical documentation and a user guide, a training session for your team, and a post-go-live support window. The full git repository is handed over to you, so the code is yours to keep and extend.