How To Fix AO090 - Quantity &1 was entered without a unit - enter a unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: AO - Appropriation requests - Master data / Customizing

• Message number: 090

• Message text: Quantity &1 was entered without a unit - enter a unit of measure

What causes this issue?

You entered the quantity &V1& but did not enter a unit of measure.

System Response

You cannot enter a quantity without a unit of measure.

How to fix this error?

Enter the correct unit of measure for the quantity you entered. Use the
entry help.
Or delete the quantity entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AO090 - Quantity &1 was entered without a unit - enter a unit of measure ?

  The SAP error message AO090 indicates that a quantity has been entered without a corresponding unit of measure. This error typically occurs in various SAP transactions where quantities are expected to be associated with a specific unit of measure, such as in inventory management, purchasing, or production planning.
  Cause:
  
  Missing Unit of Measure: The user has entered a quantity but has not specified the unit of measure (e.g., pieces, kilograms, liters).
  Incorrect Configuration: The material master or the relevant configuration may not have the unit of measure defined correctly.
  Data Entry Error: The user may have overlooked entering the unit of measure while filling out the form.
  
  Solution:
  
  
  Enter a Unit of Measure: When you encounter this error, check the input fields and ensure that you have entered a valid unit of measure corresponding to the quantity. For example, if you entered "10" as the quantity, you should also specify "KG" for kilograms or "PC" for pieces.
  
  
  Check Material Master Data: If you are working with a specific material, verify that the material master data includes the correct units of measure. You can do this by navigating to the material master record (transaction code MM03) and checking the "Basic Data" and "Purchasing" views.
  
  
  Review Configuration Settings: If the issue persists across multiple transactions or materials, it may be necessary to review the configuration settings in the SAP system. This could involve checking the unit of measure settings in the relevant customizing transactions (e.g., SPRO).
  
  
  User Training: Ensure that users are trained on the importance of entering both quantity and unit of measure to avoid this error in the future.
  
  
  Related Information:
  
  
  Transaction Codes: Common transaction codes where this error might occur include:
  
  MM01: Create Material
  MM02: Change Material
  MB1A: Goods Withdrawal
  ME21N: Create Purchase Order
  CO01: Create Production Order
  
  
  
  Unit of Measure Types: Familiarize yourself with the different types of units of measure used in your organization, as they can vary based on the industry and specific business processes.
  
  
  SAP Documentation: Refer to SAP Help documentation for more detailed information on handling units of measure and related error messages.
  
  
  By addressing the missing unit of measure and ensuring proper data entry practices, you can resolve the AO090 error effectively.