How To Fix L3878 - HU &1 is contained in HU &2 which has already been entered

L3878 - Overview

• Message type: E = Error

• Message class: L3 -

• Message number: 878

• Message text: HU &1 is contained in HU &2 which has already been entered

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message L3878 - HU &1 is contained in HU &2 which has already been entered ?

  The SAP error message L3878 indicates that there is a handling unit (HU) issue where a handling unit (HU &1) is contained within another handling unit (HU &2) that has already been entered in the system. This typically occurs during processes such as goods movements, inventory management, or when trying to create or modify handling units.
  
  Cause:
  
  Nested Handling Units: The error arises when you attempt to process a handling unit that is already part of another handling unit. In SAP, handling units can be nested, but certain operations may not allow for this.
  Incorrect Data Entry: The user may have mistakenly entered the wrong handling unit or may not have followed the correct sequence of operations.
  System Configuration: There may be configuration settings in the SAP system that restrict certain operations involving handling units.
  
  
  Solution:
  
  Check Handling Unit Structure: Verify the structure of the handling units involved. Use transaction code HU02 (Display Handling Unit) to