How To Fix M3424 - Fixed lot size requires lot size (materials planning)

M3424 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 424

• Message text: Fixed lot size requires lot size (materials planning)

What causes this issue?

You have selected <LS>Fixed lot size</> for copying to the profile, but
it can be copied only if you also specify a lot size in the profile.

How to fix this error?

Select <LS>Lot size (materials planning)</> on the selection screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3424 - Fixed lot size requires lot size (materials planning) ?

  The SAP error message M3424, which states "Fixed lot size requires lot size," typically occurs in the context of materials planning when there is an issue with the lot size configuration for a material. This error indicates that the system expects a fixed lot size to be defined for the material, but it is either missing or incorrectly configured.
  
  Cause:
  
  Missing Lot Size Configuration: The material master record does not have a fixed lot size defined in the MRP (Material Requirements Planning) view.
  Incorrect Lot Size Type: The lot size type may not be set correctly, or it may not be compatible with the fixed lot size requirement.
  MRP Type Issues: The MRP type assigned to the material may not support fixed lot sizes.
  Planning Parameters: The planning parameters for the material may not be set up correctly, leading to inconsistencies.
  
  
  Solution:
  To resolve the M3424 error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to the