How To Fix MG520 - Distribution chain segment for material & has no header segment

MG520 - Overview

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 520

• Message text: Distribution chain segment for material & has no header segment

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MG520 - Distribution chain segment for material & has no header segment ?

  The SAP error message MG520 indicates that there is an issue with the distribution chain segment for a material, specifically that it lacks a corresponding header segment. This error typically arises in the context of material master data, particularly when dealing with sales and distribution (SD) or materials management (MM) modules.
  
  Cause:
  
  Missing Header Segment: The primary cause of this error is that the material master record is missing a header segment for the specified distribution chain. The header segment is essential as it contains general data about the material that is relevant across all views.
  Incomplete Data Entry: During the creation or modification of the material master, if the header data was not properly saved or was skipped, it can lead to this error.
  Data Inconsistency: There may be inconsistencies in the database where the distribution chain segment exists without a corresponding header segment.
  
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to transaction code MM03 (Display Material)