How To Fix 88355 - Unit of measure &1 is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: 88 - REA Processing

• Message number: 355

• Message text: Unit of measure &1 is not defined

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 88355 - Unit of measure &1 is not defined ?

  The SAP error message 88355, which states "Unit of measure &1 is not defined," typically occurs when the system encounters a unit of measure (UoM) that has not been defined in the system. This can happen in various contexts, such as during the creation of materials, sales orders, or inventory management.
  Cause:
  
  Undefined Unit of Measure: The specific unit of measure (represented by &1 in the error message) has not been set up in the SAP system.
  Incorrect Configuration: The unit of measure may be incorrectly configured or not assigned to the relevant material or product.
  Data Entry Error: There may be a typo or incorrect entry when specifying the unit of measure in a transaction.
  
  Solution:
  
  
  Define the Unit of Measure:
  
  Go to the transaction code CUNI (Maintain Units of Measure).
  Check if the unit of measure in question is listed. If not, you will need to create it.
  Click on "New Entries" and enter the required details for the unit of measure, including its description and conversion factors if necessary.
  
  
  
  Assign the Unit of Measure to Material:
  
  If the unit of measure is defined but not assigned to a material, go to transaction code MM02 (Change Material).
  Navigate to the "Basic Data" or "Sales Org. Data" views and ensure that the unit of measure is assigned correctly.
  
  
  
  Check Material Master Data:
  
  Ensure that the material master data is complete and that all necessary units of measure are defined and assigned.
  Use transaction code MM03 (Display Material) to review the material master data.
  
  
  
  Review Configuration Settings:
  
  If you have access to configuration settings, check the settings in the SPRO transaction under "Logistics - General" > "Material Master" > "Basic Settings" > "Define Units of Measure" to ensure that the unit of measure is properly configured.
  
  
  
  Consult Documentation: If you are unsure about the correct unit of measure to use, consult your organization's documentation or speak with a colleague who is knowledgeable about the specific materials or processes involved.
  
  
  Related Information:
  
  Unit of Measure Types: SAP allows for various types of units of measure, such as base units, alternative units, and sales units. Understanding these can help in proper configuration.
  Conversion Factors: If you are using multiple units of measure for a material, ensure that conversion factors are correctly defined to avoid discrepancies.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to unit of measure settings or material master data.
  
  By following these steps, you should be able to resolve the error message 88355 and ensure that the unit of measure is properly defined and utilized in your SAP system.