The cost of integrating a 3PL does not come from a single connection, but from their multiplication into point-to-point links that must be built and then maintained. The solution is not to code each link, but to use a connectivity hub with pre-built connectors: each connection becomes an activation, without migration or custom development, and the time-to-live drops from several months to a few weeks.
For many brands, every logistics change hits the same wall: the 3PL must be connected to the e-commerce site and the ERP, and that connection turns into a multi-month IT project. This integration debt is one of the main brakes on an e-commerce company's growth. This article explains why integration costs so much, compares the four possible methods, gives a checklist of what to require, and shows how to connect without heavy development.
The cost does not come from a single connection, but from their multiplication. If you connect each system to every other, point to point, the number of connections explodes: a site, an ERP, two 3PLs, three marketplaces and a TMS, and you end up with a spider web of links to build and, above all, to maintain.
Each point-to-point link is fragile: an API update on the marketplace side or a format change on the 3PL side, and the connection breaks. Maintenance ends up costing more than the initial build. This is the classic trap of custom integration.
| Method | Real time | Time-to-live | Maintenance | When to use it |
|---|---|---|---|---|
| Custom development (point to point) | Yes | Long (months) | On you, permanent | Genuinely atypical cases |
| EDI | Mostly batch | Medium to long | Heavy | B2B, large retail |
| iPaaS (integration platform) | Yes | Medium | On you | Internal technical team available |
| Connectivity hub (pre-built connectors) | Yes | Short (days to weeks) | Handled by the vendor | An e-commerce business that wants to activate, not develop |
Before choosing an approach or a platform, check these points:
Spacefill is built on this connectivity-hub principle. Through 3PL Connect, the platform ships 50+ native WMS connectors to the market's 3PLs, plus CMS, ERP, marketplace and carrier connectors, and covers the rest via WMS Connect and an open API. You plug into the existing stack without forcing a migration on your provider, and without a custom development project. You can explore the detail on the all integrations page, with ready-to-use connectors such as the NetSuite integration the WooCommerce integration or the Amazon integration.
Concretely, this changes the economics of every change: adding a marketplace or a new 3PL becomes a connector activation, not a project. That is what lets Spacefill announce onboarding in under 30 days and a full deployment in 6 to 12 weeks, where custom integration is counted in months. The automated order-extraction capability (Smart Order, part of the AI agents) completes the picture by processing orders received as PDF or Excel, with a strong reduction in errors and data-entry time.
With a connectivity hub, the client's IT effort is most often limited to providing access and validating the initial mapping. The bulk of the work (the connection logic, API maintenance, adapting to version changes) is carried by the vendor. This is the exact opposite of custom development, where every connection and its maintenance rest on your teams.
The right reflex: evaluate an integration not on its upfront cost, but on its total cost over three years, maintenance included. That is where a connectivity hub pulls ahead.
Connecting your e-commerce and ERP to your 3PL should not be a recurring IT project. The real cost of integration comes from the multiplication of point-to-point links and their maintenance. A connectivity hub with pre-built connectors, like Spacefill's, turns each connection into a simple activation, without migration or custom development, and cuts time-to-live from several months to a few weeks.
Dreading the integration project at every logistics change? Book a Spacefill demo to see how to connect your stack without heavy development.
Rarely. For the vast majority of cases, a connectivity hub with pre-built connectors to the market's WMS, CMS and ERP is enough, with no specific development.
No. A platform like Spacefill plugs into your provider's existing WMS via a native connector, an API or EDI, without forcing a migration.
With a connectivity hub, you are looking at activation in a few days to a few weeks, versus several months for custom integration. Spacefill announces onboarding in under 30 days.
An iPaaS gives you the tools to build and maintain your integrations, which requires internal skills. A connectivity hub provides connectors already built and maintained by the vendor: you activate instead of developing.
Automated extraction capabilities, such as Spacefill's Smart Order, read orders in PDF or Excel and inject them into the flow without re-keying, sharply reducing errors and processing time.