How To Fix /SAPAPO/CTM1312 - Inconsistent lot size entries for selection of source of supply &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 312

• Message text: Inconsistent lot size entries for selection of source of supply &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CTM1312 - Inconsistent lot size entries for selection of source of supply &1 ?

  The SAP error message /SAPAPO/CTM1312 indicates that there are inconsistent lot size entries for the selection of a source of supply in the Advanced Planning and Optimization (APO) module, specifically in the context of the Capable-to-Match (CTM) functionality. This error typically arises when the system encounters discrepancies in the lot size settings for the materials or sources of supply being considered during the planning process.
  Cause:
  
  Inconsistent Lot Size Settings: The lot size settings for the materials or sources of supply may not be aligned. For example, one source of supply may have a different lot size defined compared to another, leading to inconsistencies.
  Missing or Incorrect Master Data: The material master data or the source of supply master data may be incomplete or incorrectly configured, particularly in terms of lot size parameters.
  Planning Version Issues: If different planning versions are being used, there may be inconsistencies in the lot size definitions across those versions.
  CTM Configuration: The configuration settings for CTM may not be properly set up, leading to issues in how the system interprets lot sizes.
  
  Solution:
  
  
  Review Lot Size Settings: Check the lot size settings for the materials and sources of supply involved. Ensure that they are consistent and correctly defined in the material master and source of supply master data.
  
  Transaction Codes: Use MM02 to check material master data and MD04 to view stock/requirements list.
  
  
  
  Check Master Data: Ensure that all relevant master data is complete and correctly configured. This includes checking the material master, source of supply, and any relevant planning parameters.
  
  
  Validate Planning Versions: If you are using multiple planning versions, ensure that the lot size settings are consistent across these versions.
  
  
  CTM Configuration: Review the CTM configuration settings in the system. Ensure that the settings for lot sizes are correctly defined in the CTM profile.
  
  Transaction Code: Use SPRO to access the configuration settings.
  
  
  
  Run Consistency Checks: Use the consistency check tools available in SAP APO to identify and resolve any inconsistencies in the master data or planning settings.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to CTM and lot size settings for additional guidance and best practices.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP APO and CTM to better understand how lot sizes are managed within the system.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve the inconsistency in lot size entries.