How To Fix MU125 - Internal number assignment is not possible for the material type &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 125

• Message text: Internal number assignment is not possible for the material type &1.

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 MU125 - Internal number assignment is not possible for the material type &1. ?

  The SAP error message MU125, which states "Internal number assignment is not possible for the material type &1," typically occurs when there is an issue with the number assignment configuration for a specific material type in the SAP system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Material Type Configuration: The material type specified in the error message may not be configured correctly for internal number assignment. This can happen if the number range for that material type is not defined or is not set to allow internal number assignment.
  
  
  Number Range Issues: The number range object associated with the material type may be locked, exhausted, or incorrectly set up.
  
  
  Authorization Issues: The user may not have the necessary authorizations to create materials of that type.
  
  
  System Settings: There may be system settings or parameters that prevent the internal number assignment for that material type.
  
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Find the number range object associated with the material type (usually MATERIAL).
  Check if the number range is defined and if it allows internal number assignment.
  Ensure that the number range is not locked and has available numbers.
  
  
  
  Adjust Material Type Settings:
  
  Use transaction code OMS2 to check the configuration of the material type.
  Ensure that the material type is set up for internal number assignment. This can be found in the settings for the material type.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to create materials of the specified type. This can be checked in transaction code SU53 after the error occurs.
  
  
  
  Consult with Basis Team:
  
  If the issue persists, consult with your SAP Basis team to check for any system-level issues or configurations that might be affecting number assignment.
  
  
  
  Review Documentation:
  
  Review SAP documentation or notes related to the specific material type and number range configuration for any additional insights or updates.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO: Number Range Objects
  OMS2: Material Type Configuration
  SU53: Authorization Check
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  
  Material Master: Understanding the material master data and its configuration can help in troubleshooting similar issues.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the MU125 error in SAP.