How To Fix MM105 - Material has no alternative units of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 105

• Message text: Material has no alternative units of measure

What causes this issue?

You want to convert quantities of a material to which no alternative
units of measure have been assigned.

System Response

Conversion is not possible.

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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM105 - Material has no alternative units of measure ?

  The SAP error message MM105 ("Material has no alternative units of measure") typically occurs when you are trying to perform an operation involving a material that does not have alternative units of measure defined in the material master data. This can happen in various transactions, such as when creating purchase orders, sales orders, or during inventory management activities.
  Cause:
  
  Missing Alternative Units of Measure: The material master record does not have any alternative units of measure defined. This is often required for operations that involve different units of measure (e.g., purchasing in boxes but selling in pieces).
  Incorrect Configuration: The configuration settings for the material type or the specific material may not allow for alternative units of measure.
  Data Entry Error: There may have been an oversight during the creation or maintenance of the material master data.
  
  Solution:
  To resolve the MM105 error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to transaction code MM03 (Display Material) or MM02 (Change Material).
  Enter the material number and select the appropriate views (usually the Basic Data or Purchasing view).
  Check if alternative units of measure are defined. If not, you will need to add them.
  
  
  
  Define Alternative Units of Measure:
  
  In the material master, navigate to the "Units of Measure" section.
  Add the required alternative units of measure. You can specify the conversion factors between the base unit and the alternative units.
  
  
  
  Save Changes: After adding the necessary alternative units of measure, save the changes to the material master.
  
  
  Test the Transaction Again: After making the changes, try to perform the transaction that previously resulted in the error to see if it has been resolved.
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, each material can have a base unit of measure and alternative units of measure. The base unit is the primary unit used for inventory management, while alternative units can be used for purchasing, sales, and other operations.
  Conversion Factors: When defining alternative units of measure, you need to specify conversion factors to ensure that SAP can correctly convert quantities between different units.
  Material Master Views: Ensure that you have the necessary authorizations to change the material master data, as some views may be restricted based on user roles.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP documentation for further troubleshooting.