How To Fix O8386 - Volume unit of measure & will not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: O8 - IS-Oil: TD Transportation and Distribution

• Message number: 386

• Message text: Volume unit of measure & will not be changed

What causes this issue?

You have requested to copy data from the equipment/fleet object master
to your transport unit. The volume unit of measure maintained on the
fleet object differs from the one specified in the transport unit.
However, volume capacities have already been maintained for some
compartments of your transport unit. Therefore, changing the volume
unit of measure would lead to inconsistencies.

System Response

The volume unit of measure will not be changed.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O8386 - Volume unit of measure & will not be changed ?

  The SAP error message O8386, which states "Volume unit of measure & will not be changed," typically occurs in the context of material management or inventory management when there is an attempt to change the unit of measure for a material that is not allowed due to certain constraints.
  Cause:
  
  Unit of Measure Configuration: The unit of measure for a material may be configured in such a way that it cannot be changed. This could be due to settings in the material master or the way the material is defined in the system.
  Stock Management: If there is stock on hand in the current unit of measure, SAP may prevent changes to avoid inconsistencies in inventory records.
  Transaction Type Restrictions: Certain transaction types may have restrictions on changing units of measure, especially if they are linked to specific business processes.
  Dependencies on Other Data: The unit of measure may be linked to other data or processes that do not allow for changes, such as sales orders, purchase orders, or production orders.
  
  Solution:
  
  Check Material Master Data: Review the material master data for the specific material. Ensure that the unit of measure settings are correct and that the desired unit of measure is allowed.
  Stock Levels: If there is stock in the current unit of measure, consider adjusting the stock levels or converting the stock to the new unit of measure before attempting to change it.
  Review Configuration: Check the configuration settings in the SAP system related to units of measure. This may involve consulting with your SAP configuration team or reviewing the relevant customizing settings.
  Use Transaction Codes: Use transaction codes like MM02 (Change Material) to review and attempt to change the unit of measure, ensuring that all necessary prerequisites are met.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on changing units of measure and any related restrictions.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Roles and Authorizations: Ensure that the user attempting to make the change has the necessary authorizations to modify material master data.
  Testing in a Sandbox: If possible, test the changes in a sandbox environment to understand the implications of changing the unit of measure before applying changes in the production environment.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management for further assistance.