How To Fix QHU004 - No handling unit was assigned to & samples

QHU004 - Overview

• Message type: E = Error

• Message class: QHU - QM messages for processing inspection lots with HU's

• Message number: 004

• Message text: No handling unit was assigned to & samples

What causes this issue?

You have not assigned a handling unit to all samples. Therefore only the
samples with assignments are updated.
You can only release samples that are assigned to a handling unit.

System Response

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

How to fix this error?

Assign all handling units possible to the samples.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

QHU004 - Details

• The SAP error message QHU004, which states "No handling unit was assigned to & samples," typically occurs in the context of handling units (HUs) in SAP's logistics and warehouse management modules. This error indicates that the system is unable to find a handling unit associated with the specified samples, which can hinder processes such as goods movement, inventory management, or quality inspection.
  Causes:
  
  Missing Handling Unit Assignment: The samples you are trying to process do not have a handling unit assigned to them.
  Incorrect Configuration: The system may not be configured correctly to handle the assignment of handling units to samples.
  Data Entry Errors: There may be errors in the data entry process, such as incorrect material numbers or sample identifiers.
  Incomplete Processes: The handling unit may not have been created or completed in the system before attempting to assign it to the samples.
  System Bugs or Issues: Occasionally, there may be bugs or issues in