How To Fix L3789 - No HU pick. Source handling unit must not be specified

L3789 - Overview

• Message type: E = Error

• Message class: L3 -

• Message number: 789

• Message text: No HU pick. Source handling unit must not be specified

What causes this issue?

Although the withdrawal does not result from a handling unit for TO
items &V1& &V2&, a handling unit was entered.

System Response

Confirmation of the TO items is rejected by the system.

How to fix this error?

A handling unit must not be entered for confirmation of this TO item.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message L3789 - No HU pick. Source handling unit must not be specified ?

  The SAP error message L3789 ("No HU pick. Source handling unit must not be specified") typically occurs in the context of handling units (HUs) during warehouse operations, particularly when trying to perform picking tasks. This error indicates that the system is expecting a picking operation that does not involve a specific handling unit, but one has been specified.
  
  Cause:
  
  Handling Unit Specification: The error arises when a handling unit is specified in a picking operation where the system does not expect it. This can happen if the picking process is set up to pick items directly from storage locations rather than from specific handling units.
  
  Configuration Issues: There may be configuration settings in the warehouse management module that dictate how picking should be handled, and these settings may not align with the current operation.
  Incorrect Document Type: The document type being used for the picking operation may not support handling units, leading to this