How To Fix LB406 - Automatic number assignment only; specified batch & will be ignored

SAP Error Message - Details

• Message type: E = Error

• Message class: LB - Logistics: Batch - Management

• Message number: 406

• Message text: Automatic number assignment only; specified batch & will be ignored

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LB406 - Automatic number assignment only; specified batch & will be ignored ?

  The SAP error message LB406 ("Automatic number assignment only; specified batch & will be ignored") typically occurs in the context of batch management in SAP. This error indicates that the system is set to automatically assign batch numbers, but a specific batch number has been provided in the transaction. As a result, the system ignores the specified batch number and uses the automatically generated one instead.
  Cause:
  
  Batch Management Settings: The material in question is configured for automatic batch number assignment in the material master settings.
  Transaction Context: The transaction you are performing (e.g., goods movement, production order, etc.) is set to use automatic batch assignment, which conflicts with the manual batch number input.
  Configuration: The configuration in the batch management settings may not allow for manual entry when automatic assignment is enabled.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Use Automatic Batch Assignment:
  
  If the system is configured for automatic batch assignment, you can simply allow the system to generate the batch number. Do not specify a batch number in the transaction.
  
  
  
  Change Material Master Settings:
  
  If you need to manually assign batch numbers, you can change the material master settings to allow for manual batch assignment. This can be done by:
  
  Navigating to the material master record (transaction code MM02).
  Selecting the appropriate views (e.g., Basic Data, Plant Data, etc.).
  Adjusting the batch management settings to allow for manual entry.
  
  
  
  
  
  Check Transaction Settings:
  
  Review the settings of the transaction you are using to see if there is an option to allow manual batch entry. Some transactions may have specific configurations that enforce automatic assignment.
  
  
  
  Consult with SAP Basis or Functional Consultant:
  
  If you are unsure about making changes to the material master or transaction settings, consult with your SAP Basis or functional consultant. They can provide guidance based on your organization's specific configuration and requirements.
  
  
  
  Related Information:
  
  Batch Management: Understand how batch management works in SAP, including the settings in the material master and how it affects inventory management.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MIGO (Goods Movement), and others that may be related to batch management.
  SAP Documentation: Refer to SAP Help documentation for detailed information on batch management and error messages related to it.
  
  By following these steps, you should be able to address the LB406 error and ensure that your batch management processes work as intended.