How To Fix M3436 - Use the lot-sizing procedure with "fixed lot size"

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 436

• Message text: Use the lot-sizing procedure with "fixed lot size"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M3436 - Use the lot-sizing procedure with "fixed lot size" ?

  The SAP error message M3436 indicates that there is an issue with the lot-sizing procedure in the material master data. Specifically, it suggests that the system is expecting a fixed lot size to be used for the material, but it has not been configured correctly.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Lot Sizing Procedure Not Set: The material master record does not have the appropriate lot-sizing procedure defined, or it is set to a different type that does not support fixed lot sizes.
  Configuration Issues: The configuration in the material master or the related settings in the material requirements planning (MRP) may not align with the fixed lot size requirements.
  MRP Type: The MRP type assigned to the material may not be compatible with the fixed lot size procedure.
  Master Data Inconsistencies: There may be inconsistencies or missing data in the material master that prevent the system from applying the fixed lot size.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the MRP views.
  Ensure that the lot-sizing procedure is set to "Fixed Lot Size" (e.g., "FX" for fixed lot size).
  
  
  
  Review Lot Sizing Procedure:
  
  If the lot-sizing procedure is not set correctly, you can change it in the material master (transaction code MM02).
  Navigate to the relevant MRP view and set the lot-sizing procedure to "Fixed Lot Size".
  
  
  
  Verify MRP Type:
  
  Ensure that the MRP type assigned to the material is compatible with the fixed lot size. For example, the MRP type should allow for fixed lot sizes.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings in the SAP system related to lot sizing (transaction code SPRO).
  Navigate to the relevant sections under "Production" or "Material Management" to ensure that the fixed lot size settings are correctly configured.
  
  
  
  Run MRP:
  
  After making the necessary changes, run the MRP process again to see if the error persists.
  
  
  
  Consult Documentation:
  
  If the issue continues, consult SAP documentation or reach out to your SAP support team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  SPRO: Customizing Implementation Guide
  
  
  Lot Sizing Procedures: Familiarize yourself with different lot-sizing procedures available in SAP, such as:
  
  Fixed Lot Size (FX)
  Lot-for-Lot (L4L)
  Reorder Point (ROP)
  
  
  MRP Types: Understand the different MRP types and their implications on inventory management and planning.
  
  By following these steps, you should be able to resolve the M3436 error and ensure that the fixed lot size procedure is correctly applied to your material.