How To Fix DMU321 - Variable-size item quantity was corrected

DMU321 - Overview

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 321

• Message text: Variable-size item quantity was corrected

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 DMU321 - Variable-size item quantity was corrected ?

  The SAP error message DMU321, which states "Variable-size item quantity was corrected," typically occurs in the context of handling variable-size items in SAP, particularly in the materials management (MM) module. This message indicates that the system has automatically adjusted the quantity of a variable-size item due to discrepancies or inconsistencies in the data.
  
  Cause:
  
  Inconsistent Data: The error often arises when there is a mismatch between the expected quantity of a variable-size item and the actual quantity recorded in the system. This can happen during goods movements, inventory counts, or when processing purchase orders.
  Unit of Measure Issues: If the unit of measure for the variable-size item is not correctly defined or if there are conversion issues, it can lead to discrepancies in quantity.
  Incorrect Configuration: The configuration settings for handling variable-size items may not be set up correctly, leading to automatic corrections by the system.
  
  
  Solution:
  
  Review the Transaction: Check the transaction that triggered the