How To Fix WAHD634 - Unit of measure &1 not maintained for material &2

WAHD634 - Overview

• Message type: E = Error

• Message class: WAHD - Messages for Alternative Historical Data

• Message number: 634

• Message text: Unit of measure &1 not maintained for material &2

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 WAHD634 - Unit of measure &1 not maintained for material &2 ?

  The SAP error message WAHD634 indicates that a unit of measure (UoM) is not maintained for a specific material in the system. This error typically occurs when you are trying to perform an operation that requires a unit of measure for a material, but the system cannot find the necessary information.
  
  Cause:
  
  Missing Unit of Measure: The primary cause of this error is that the unit of measure for the specified material is not defined in the material master data.
  Incorrect Material Master Data: The material may not have been set up correctly, or the relevant UoM may not have been assigned.
  Data Inconsistency: There may be inconsistencies in the data, such as changes made to the material master that were not properly saved or updated.
  
  
  Solution:
  To resolve the WAHD634 error, follow these steps:
  
  
  Check Material Master Data:
  
  Go to the transaction code MM03 (Display Material) and enter the material number (&2 in the error message).
  Check the