How To Fix O3186 - Unit of measure group required with conversion group or tax group

SAP Error Message - Details

• Message type: E = Error

• Message class: O3 - IS-Oil: HPM messages (goods movements, QCI, deliveries)

• Message number: 186

• Message text: Unit of measure group required with conversion group or tax group

What causes this issue?

You have entered a conversion group or tax group, but have not entered
a unit of measure group.

System Response

Error.

How to fix this error?

Enter a unit of measure group, or remove the conversion group and/or
tax group.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O3186 - Unit of measure group required with conversion group or tax group ?

  The SAP error message O3186, "Unit of measure group required with conversion group or tax group," typically occurs in the context of material master data or when dealing with purchasing and sales documents. This error indicates that the system requires a unit of measure (UoM) group to be defined when a conversion group or tax group is specified.
  Cause:
  
  Missing Unit of Measure Group: The material master record does not have a unit of measure group assigned, which is necessary when conversion or tax groups are defined.
  Incorrect Configuration: The configuration settings in the material master or related settings may not be properly set up to handle the conversion or tax groups.
  Data Entry Error: During the creation or modification of a material, the user may have omitted the unit of measure group.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM02 for change or MM03 for display).
  Check the "Basic Data" view and ensure that a unit of measure group is assigned.
  If it is missing, you can assign a suitable unit of measure group.
  
  
  
  Assign Unit of Measure Group:
  
  If you need to assign a unit of measure group, you can do this in the material master by navigating to the "Basic Data" view and entering a valid unit of measure group.
  
  
  
  Review Conversion and Tax Groups:
  
  Ensure that the conversion group and tax group are correctly defined and that they are compatible with the unit of measure group you are trying to use.
  
  
  
  Check Configuration Settings:
  
  If you have access to configuration settings, check the settings for units of measure and ensure that they are correctly configured in the system.
  
  
  
  Consult Documentation:
  
  If you are unsure about which unit of measure group to use, consult your organization's documentation or speak with a colleague who is knowledgeable about the material master data setup.
  
  
  
  Related Information:
  
  Unit of Measure Group: This is a grouping of units of measure that allows for conversions between different units (e.g., kilograms to grams).
  Conversion Group: This is used to define how different units of measure can be converted from one to another.
  Tax Group: This is used to determine the tax treatment of a material based on its classification.
  
  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 to further investigate the issue.