How To Fix 12181 - Internal batch number assignment is not allowed for material type &1

12181 - Overview

• Message type: E = Error

• Message class: 12 - Herstelldatum/Mindesthaltbarkeitsdatum/Chargen

• Message number: 181

• Message text: Internal batch number assignment is not allowed for material type &1

What causes this issue?

You want to create a batch for a material with material type <LS>&V1&
</> and have not entered a batch number. In Customizing, you have
defined for this material type that batch numbers cannot be assigned
automatically (even if the internal assignment of batch numbers is
generally active).

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?

You can either change the Customizing setting for material type
<LS>&V1& </> to allow batch numbers to be assigned internally, or you
can assign a batch number yourself.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 12181 - Internal batch number assignment is not allowed for material type &1 ?

  The SAP error message 12181, "Internal batch number assignment is not allowed for material type &1," typically occurs when you are trying to assign a batch number to a material that is configured in a way that does not allow for internal batch number assignment. This can happen in various scenarios, such as during goods movements, production, or inventory management.
  
  Cause:
  
  Material Type Configuration: The material type associated with the material does not allow for internal batch number assignment. This is often defined in the material master settings.
  Batch Management Settings: The batch management settings for the material may be configured to use external batch numbers only.
  Transaction Context: The transaction you are performing may not support internal batch number assignment for the specified material type.
  
  
  Solution:
  
  
  Check Material Master Settings:
  
  Go to the material master record (transaction code MM03).
  Check the "Basic Data" and "Batch Management" views to see if the material type allows for internal batch