How To Fix /SCF/CL_MESSAGES_ASN451 - Select a handling unit which contains other handling units

/SCF/CL_MESSAGES_ASN451 - Overview

• Message type: E = Error

• Message class: /SCF/CL_MESSAGES_ASN -

• Message number: 451

• Message text: Select a handling unit which contains other handling units

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 /SCF/CL_MESSAGES_ASN451 - Select a handling unit which contains other handling units ?

  The SAP error message /SCF/CL_MESSAGES_ASN451 indicates that you are trying to select a handling unit (HU) that contains other handling units. This typically occurs in scenarios where nested handling units are not allowed or when the system expects a handling unit that does not have any child handling units.
  
  Cause:
  
  Nested Handling Units: The handling unit you are trying to select is a parent handling unit that contains other handling units (child HUs). The system does not allow operations on parent HUs when it expects a leaf HU (one that does not contain other HUs).
  Incorrect Selection: The operation you are trying to perform (e.g., goods movement, picking, etc.) requires a handling unit that is not a parent.
  Configuration Settings: The system configuration may not allow operations on handling units that contain other handling units.
  
  
  Solution:
  
  Select a Leaf Handling Unit: Instead of selecting the parent handling unit, navigate to the child handling units contained within