AA899 - Enter the unit of measure with the quantity

SAP Error Message - Details

• Message type: E = Error

• Message class: AA - Messages for Asset Accounting

• Message number: 899

• Message text: Enter the unit of measure with the quantity

What causes this issue?

In master data maintenance for the asset, you have entered a
quantity, but you have not entered a unit of measure.
The asset cannot be managed with a quantity if the the unit of
measure is missing. In particular, it is not possible to enter
quantities when posting.

System Response

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

How to fix this error?

Enter the unit of measure. If the field for the unit of measure
does not appear on your screen, or it is not ready for input, this is
due to screen layout rule &V1& in your master record.
In this case, you first have to end the master data transaction, and
change the screen layout &V1& in Asset Accounting Customizing.

Error message extract from SAP system. Copyright SAP SE.

AnswerBot

• What is the cause and solution for SAP error message AA899 - Enter the unit of measure with the quantity ?

  The SAP error message AA899, which states "Enter the unit of measure with the quantity," typically occurs in the context of asset accounting or inventory management when a user attempts to enter a quantity without specifying the corresponding unit of measure. This can happen during various transactions, such as asset acquisition, transfer, or adjustments.
  Cause:
  
  Missing Unit of Measure: The most common cause is that the user has entered a quantity but has not specified the unit of measure (UoM) for that quantity.
  Incorrect Configuration: The system may not be properly configured to recognize the unit of measure for the asset or inventory item being processed.
  Data Entry Error: Users may inadvertently skip the field for the unit of measure while entering data.
  
  Solution:
  
  Enter Unit of Measure: Ensure that you enter the appropriate unit of measure alongside the quantity. For example, if you are entering a quantity of 10, you should also specify whether it is in pieces, kilograms, liters, etc.
  Check Configuration: If you are consistently encountering this error, check the configuration settings in SAP to ensure that the unit of measure is defined for the relevant materials or assets. This can be done in the material master or asset master data.
  Review User Input: Double-check your input to ensure that all required fields are filled out correctly. Make sure that the unit of measure field is not left blank.
  Consult Documentation: If you are unsure about the correct unit of measure to use, refer to your organization's documentation or consult with a colleague who is familiar with the specific asset or inventory item.
  
  Related Information:
  
  Transaction Codes: This error may occur in various transaction codes related to asset accounting (e.g., AS01 for asset creation, AS02 for asset change) or inventory management (e.g., MIGO for goods movements).
  Unit of Measure Settings: You can check the unit of measure settings in the material master (transaction code MM02) or asset master (transaction code AS02) to ensure that the correct units are defined.
  SAP Notes: Check SAP Notes or the SAP Support Portal for any known issues or patches related to this error message.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in asset accounting or inventory management.