How To Fix O3256 - Target unit of measure is initial

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 256

• Message text: Target unit of measure is initial

What causes this issue?

The system attempts to convert a quantity between two units of measure
(UoM). The target UoM is initial; the conversion is not defined.

System Response

The system stops processing.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

The problem is caused by an incorrect call of function
OIB_QCI_QUANTITY_CONTROL or OIB_QCI_CONVERSION_SIMPLE. Note the
transaction/process for which the error occurs and either change your
program or contact SAP if the error occurs in a standard SAP program.

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 O3256 - Target unit of measure is initial ?

  The SAP error message O3256, which states "Target unit of measure is initial," typically occurs in the context of material management or inventory management processes. This error indicates that the system is expecting a target unit of measure (UoM) to be specified, but it has not been provided or is empty.
  Cause:
  
  Missing Target UoM: The most common cause of this error is that the target unit of measure has not been defined in the transaction or configuration where it is required.
  Incorrect Configuration: There may be an issue with the configuration of the material master or the relevant transaction settings that do not properly define the target UoM.
  Data Entry Error: Users may have inadvertently left the target UoM field blank during data entry.
  
  Solution:
  
  Check Input Fields: Ensure that the target unit of measure field is filled in correctly in the transaction you are working with. If you are entering data manually, make sure to specify the target UoM.
  Review Material Master Data: Go to the material master record (transaction code MM03) and check if the unit of measure settings are correctly defined. Ensure that the target UoM is set up in the relevant views (e.g., purchasing, sales, etc.).
  Configuration Settings: If you have access to configuration settings, check the relevant settings in the SAP IMG (Implementation Guide) under Logistics > Material Management > Basic Settings > Units of Measure. Ensure that the target UoM is defined and linked correctly.
  Consult Documentation: Review any relevant documentation or user manuals for the specific transaction or process you are working with to ensure that you are following the correct procedures.
  User Training: If this error is occurring frequently, consider providing additional training to users on the importance of specifying the target UoM in relevant transactions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) to manage material master data.
  Unit of Measure Tables: The unit of measure settings can be found in tables like T006 (Units of Measure) and T006A (Units of Measure: Language-Dependent Texts).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or updates provided by SAP.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management.