If you ship internationally with DHL Express, ERPNext leaves you doing the hardest part by hand. Stock ERPNext has a Shipment DocType and rudimentary parcel-service scaffolding, but no real DHL Express connectivity: no live rates at quote time, no label PDFs, no commercial invoice, no customs line data, and no tracking that flows back to the order. Teams end up re-keying every shipment into the MyDHL+ portal, copying tracking numbers into a Delivery Note comment, and reconciling freight cost after the fact. That double entry is slow, error-prone on HS codes and declared values, and it hides true landed shipping cost from your margins.

ECOSIRE builds a proper Frappe app — its own module with versioned migrations, not a pile of loose customizations — that wires ERPNext directly into the DHL Express MyDHL API. We add a DHL Express Settings DocType for OAuth/account credentials and per-Company account numbers (encrypted via Frappe's password fieldtype), plus a DHL Shipment DocType that links back to the source Delivery Note and Sales Order. Rate shopping is exposed through a whitelisted method (@frappe.whitelist()) and a client script button so users see live, all-in DHL rates on the Sales Order or Delivery Note before they commit. On submit, hooks.py doc events call the MyDHL shipment endpoint to book the pickup, return the label as PDF or ZPL for thermal printers, generate the paperless commercial invoice from your item and customs data, and write the AWB and piece IDs back onto the record.

Tracking is closed-loop. We register a DHL webhook (or a scheduler event polling the tracking endpoint on a cron interval for accounts without push) that updates a status field and appends events to the timeline, so support and finance see delivery milestones without leaving ERPNext. Multi-piece shipments are modeled as a child table with per-piece weight and dimensions; dutiable shipments carry HS code, country of origin, and declared value pulled from the Item and its customs fields so the customs invoice validates on the first try. Everything respects ERPNext permissions — we ship a role profile so warehouse users can rate and print while only authorized staff can void or refund a shipment, and every API call is logged for audit.

Because this is build-to-order, you are not downloading a generic marketplace plugin and hoping it fits. We start with a short scoping call, confirm your DHL account structure, incoterms, item/customs data model, and print workflow, then build against Frappe/ERPNext v15 (and v16 where you are already on it). Typical delivery is one working week from confirmed scope. You get the installable source, a staging UAT, a documented go-live, and the git repository handed to you — no lock-in, no black box.