How To Fix M7454 - Handling unit requirement is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: M7 - Inventory Management and Physical Inventory

• Message number: 454

• Message text: Handling unit requirement is not unique

What causes this issue?

This error message appears in the following situation:
You want to post several goods movements at the same time in different
storage locations. In other words, the
<DS:GLOS.3526C023AFAB52B9E10000009B38F974>material document</> to be
posted has several items. According to the system,
<DS:GLOS.35CEB720B3CC735DE10000009B38F982>Handling Unit Management</> is
active in at least one of these storage locations. Whether an item is to
be processed using <DS:GLOS.3618AA32895864D8E10000009B38F985>handling
units</> (HU) or not, depends on the storage location.
For the goods movements you want to post, the following cases are
possible:
The first item refers to a storage location subject to a HU. One of the
following items is to be posted in a storage location that is not
subject to a HU.
The first item refers to a storage location that is not subject to a HU.
One of the following items is to be posted in a storage location subject
to a HU.
In both cases, there is a situation in the document to be posted that is
not clear.
For goods movements in a storage location that is not subject to a HU,
the system wants to create a material document.
For goods movements in a storage location subject to a HU, the system
wants to create a <DS:GLOS.3526BEB2AFAB52B9E10000009B38F974>delivery
</>.
The system, however, can only create a material document <ZH>or</> a
delivery. It is not technically possible to create two documents at the
same time. The item created first determines whether the complete
document is subject to a handling unit or not.

System Response

As the situation is unclear, the system cannot post these goods
movements.

Procedure for System Administrators

You can set this message in Inventory Management Customizing under
<ZH>Define Attributes of System Messages</>. If you change the message
status to <LS>W</> (warning), the system creates a delivery. <ZH>All</>
items are therefore copied into a delivery, including those that are
usually posted with a material document. This is necessary, as at least
one item requires a delivery because of the HU obligation, and the
system can create only one type of document at the same time. It is
therefore obligatory in this case to create a delivery.
This is the only possible way of processing documents that are unclear.
A delivery is then always created for all items if at least one item
features a storage location subject to a HU.
<ZH>Note</>
Some transactions, such as the pick list (transaction CO27), call the
<DS:GLOS.3526B20FAFAB52B9E10000009B38F974>function module</>
<DS:FU.MB_CREATE_GOODS_MOVEMENT>MB_CREATE_GOODS_MOVEMENT</> to post the
goods movement. This function module only outputs error messages,
warning messages are not displayed. In this case, a delivery is directly
created without a warning message.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M7454 - Handling unit requirement is not unique ?

  The SAP error message M7454, "Handling unit requirement is not unique," typically occurs in the context of handling units (HUs) in inventory management or logistics processes. This error indicates that there is ambiguity in the handling unit requirements for a particular transaction, meaning that the system cannot determine which handling unit to use because multiple handling units meet the criteria.
  Causes:
  
  Duplicate Handling Units: There may be multiple handling units that match the criteria for the transaction, leading to confusion in the system.
  Incorrect Configuration: The configuration settings for handling units may not be set up correctly, causing the system to misinterpret the requirements.
  Incomplete Data: Missing or incomplete data in the handling unit master records can lead to non-unique requirements.
  Multiple Stock Types: If there are multiple stock types (e.g., unrestricted, quality inspection) that are not clearly defined, the system may struggle to identify the correct handling unit.
  
  Solutions:
  
  Check Handling Units: Review the handling units in the system to identify any duplicates or conflicts. Ensure that each handling unit is unique and correctly defined.
  Review Configuration: Check the configuration settings related to handling units in the SAP system. Ensure that the settings align with the business processes and requirements.
  Data Consistency: Ensure that all necessary data for handling units is complete and accurate. This includes checking the master data for any inconsistencies.
  Use Specific Criteria: When processing transactions, try to use more specific criteria to narrow down the selection of handling units. This can help the system identify the correct handling unit without ambiguity.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling unit management and troubleshooting this error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02 (Change Handling Unit), HU03 (Display Handling Unit), and others that may help in managing handling units.
  SAP Notes: Check SAP Notes for any known issues or patches related to handling units and this specific error message.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, review any user exits or BAdIs that may affect handling unit processing.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data setup in your system.