How To Fix M2429 - & : Source unit missing

M2429 - Overview

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 429

• Message text: & : Source unit missing

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.

M2429 - Details

• The SAP error message M2429, which states "Source unit missing," typically occurs in the context of inventory management or material movements. This error indicates that the system cannot find the source unit of measure for a material during a transaction, such as a goods movement or inventory transfer.
  Causes:
  
  Missing Unit of Measure (UoM) Configuration: The material may not have a defined source unit of measure in the material master data.
  Incorrect Material Master Data: The material master may not be properly maintained, leading to missing or incorrect data.
  Inconsistent Data: There may be inconsistencies in the data related to the material, such as missing entries in the unit of measure table.
  Transaction Type Issues: The specific transaction type being executed may not be compatible with the current configuration of the material.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the unit of measure settings.
  Ensure that the source unit of measure