How To Fix M3425 - Maximum stock level requires lot size (materials planning)

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 425

• Message text: Maximum stock level requires lot size (materials planning)

What causes this issue?

You have selected <LS>Maximum stock level</> 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.

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• What is the cause and solution for SAP error message M3425 - Maximum stock level requires lot size (materials planning) ?

  The SAP error message M3425 "Maximum stock level requires lot size" typically occurs in the context of materials planning and inventory management. This error indicates that there is a conflict between the maximum stock level set for a material and the lot size defined for that material. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Maximum Stock Level: The maximum stock level is a parameter that defines the upper limit of inventory for a specific material. It is used to control stock levels and ensure that excess inventory is not held.
  
  
  Lot Size: The lot size is the quantity of material that is produced or ordered in a single batch. It can be defined in various ways, such as fixed lot size, lot-for-lot, or other methods.
  
  
  Conflict: The error arises when the maximum stock level is not compatible with the defined lot size. For example, if the maximum stock level is set to a value that is not a multiple of the lot size, the system cannot determine how to fulfill the maximum stock level requirement without violating the lot size constraints.
  
  
  Solution:
  To resolve the M3425 error, you can take the following steps:
  
  
  Check Maximum Stock Level: Review the maximum stock level set for the material in the material master record. Ensure that it is appropriate for your inventory management strategy.
  
  
  Check Lot Size: Review the lot size settings for the material. Ensure that the lot size is defined correctly and is appropriate for the production or procurement process.
  
  
  Adjust Values:
  
  If the maximum stock level is not a multiple of the lot size, consider adjusting the maximum stock level to be a multiple of the lot size.
  Alternatively, you can adjust the lot size to ensure it aligns with the maximum stock level.
  
  
  
  Material Master Record: Navigate to the material master record (transaction code MM02) and check the relevant views (e.g., MRP view) to make necessary adjustments.
  
  
  Consult with Stakeholders: If you are unsure about the appropriate values for maximum stock level or lot size, consult with your inventory management or materials planning team to determine the best approach.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM02 (Change Material) to modify the material master data or MD02 (MRP Run) to run the materials planning process.
  Documentation: Refer to SAP documentation or help files for detailed information on material master data and MRP settings.
  User Exits and BAdIs: If your organization has custom logic implemented, check for any user exits or BAdIs that might affect the lot size or maximum stock level calculations.
  
  By following these steps, you should be able to resolve the M3425 error and ensure that your materials planning process runs smoothly.