Your company has decided to outsource some or all of its warehousing or distribution to a third-party logistics provider (3PL). Great move—but now comes the important part: integrating this 3PL into your SAP ECC or S/4HANA system. From EDI transactions and IDoc types to output condition records and ASN configuration, this post gives you a high-level overview of what’s involved in making that connection seamless and successful.

How to Integrate a 3PL into SAP

The core of 3PL integration lies in exchanging data between your SAP system and the 3PL through Electronic Data Interchange (EDI). To make this happen, you'll need one of two things: a reliable EDI system and an SAP analyst who understands your business processes and how they translate into IDocs, or a managed service provider who can handle the EDI and SAP sides.

Common EDI Transactions and IDocs Used in SAP 3PL Interfaces

The specific transactions you’ll need depend on your processes, but most 3PL integrations use a common set of document types. Here's a quick reference:

There are additional transactions that can enhance your 3PL integration depending on your needs. You can explore more in this post.

Key Steps to a 3PL EDI Implementation in SAP

Successful 3PL integration isn’t just about flipping a switch—it’s a collaborative process between your business, IT team, and the 3PL provider. Here’s what a typical project looks like:

1. Gather and document business requirements and 3PL capabilities
2. Determine which EDI transactions need to be exchanged
3. Define EDI field mappings and required data elements
4. Build and unit test the mapping logic
5. Conduct integration testing with your 3PL partner
6. Move to production with go-live support

What Can a Managed SAP EDI Solution Do for You?

With the right solution—like the CONTAX Arcus EDI Managed Service—you don’t have to become an EDI or SAP IDoc expert overnight. You get an experienced team who manages the full implementation, monitors ongoing traffic, and ensures everything runs smoothly, so you can focus on running your business.

Whether you’re just beginning your 3PL journey or optimizing an existing setup, success comes down to two things: understanding your business processes and choosing partners who understand how to make SAP and EDI work together. With the right support, you can avoid common pitfalls and unlock real value from your 3PL investment.