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Trading Partner Onboarding - McKesson

Written by Skylar Nguyen
Updated this week

Trading Partner: McKesson


If you are looking to implement McKesson as a new Trading Partner within your EDI network, this article will provide you with an understanding of the requirements, preliminary and next steps, as well as commonly used transaction types.


EDI IDs


McKesson utilizes the following Electronic Data Interface (EDI) IDs for identification purposes. These EDI IDs are made up of a Qualifier and an ID which will be sent within their Interchange Control Header, ISA segment, on your inbound transactions. This allows Transaction Manager to be able to identify the Sender and Receiver of any EDI transaction that is sent or received.

Below is a list of the most common EDI IDs typically used by McKesson:

X12 Qualifier

EDI ID

Primary ID?

01

023904428

Yes

01

023904428T

No

01

023904428BT

No

01

023904428B

No

ZZ

051420107

No

ZZ

051420107TT

No

ZZ

TST1MCKESSONMED

No

ZZ

TST1MOOREMEDICA

No

ZZ

21242643

No

McKesson will expect a specific EDI ID based on your business relationship with them. Selecting the wrong EDI ID will result in EDI Transactions not being sent or received.

You will need to work with McKesson to determine the proper EDI ID to use.


Preliminary Steps


Before TrueCommerce is able to begin onboarding McKesson into Transaction Manager, you will need to perform the following action to kick off your Trading Partner Implementation Project:

  • Contact: your Product Management team to assist you with the necessary steps for onboarding as a new supplier. Contact information is as follows:


Direct Trading Partner Testing


Due to limitations in their Electronic Resource Planning (ERP) system, McKesson does not require you to complete compliance testing before Go-Live. The standard approach is to move directly into Production. However, an exception can be made for chargeback testing only and should be communicated with McKesson directly.

If your organization has previously been in Production with McKesson via a different EDI provider, and you are switching to TrueCommerce’s EDI service, you can email McKesson directly and provide the below details:

  • McKesson-assigned vendor numbers or existing ISA information

  • New ISA ID and AS2 connection details

  • Transaction sets involved in the migration

  • Planned migration date

McKesson will implement the change to Production on the scheduled Go-Live date.

Please refer to the below Next Steps section for detailed instructions and expectations.


Commonly used Transactions


Below is a list of the most commonly used Transactions by McKesson:


Next Steps


Once the purchase of the McKesson plug-in is complete, your Implementation Specialist will reach out to schedule time to complete and/or coordinate a plan for compliance testing and/or Enterprise Resource Planning (ERP) system integration testing.

rev 3/13/26

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