How To Fix JIT00428 - There is already a HU reference for at least one components group

JIT00428 - Overview

• Message type: E = Error

• Message class: JIT00 - JIT: Messages for JIT Process

• Message number: 428

• Message text: There is already a HU reference for at least one components group

What causes this issue?

You have tried to create a handling unit with the JIT customer's call
(components group). In at least one of the components groups selected,
there is already a reference to a HU.
The call has the following properties:
external call number : &V1&
JIT customer : &V2&
components group type : &V3&
&systemresponse&

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

&what_to_do&
It is not possible nor necessary to assign two HUs to a components
groups. Existing HUs (which are assigned to a components group) are
unpacked and deleted with action 'DEHU'
Note: the report 'RJITDELHU' deletes the HU references to a specified
internal components group number, without considering any other facts.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message JIT00428 - There is already a HU reference for at least one components group ?

  The SAP error message JIT00428, which states "There is already a HU reference for at least one components group," typically occurs in the context of handling units (HUs) in the Just-In-Time (JIT) delivery process. This error indicates that there is an attempt to assign a handling unit (HU) to a components group that already has an existing HU reference.
  
  Cause:
  The error can be caused by several factors:
  
  Duplicate HU Assignment: The components group you are trying to assign a new HU to already has an existing HU assigned.
  Incorrect Configuration: There may be issues with the configuration of the handling units or the components groups in the system.
  Data Integrity Issues: There might be inconsistencies in the data related to handling units or components groups in the database.
  
  
  Solution:
  To resolve the JIT00428 error, you can take the following steps:
  
  
  Check Existing HU Assignments:
  
  Review the components group in question to see if it already has an HU