How To Fix /SAPAPO/CTM1311 - Inconsistent validity period for in-house prod. source of supply &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 311

• Message text: Inconsistent validity period for in-house prod. source of supply &1

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPAPO/CTM1311 - Inconsistent validity period for in-house prod. source of supply &1 ?

  The SAP error message /SAPAPO/CTM1311 indicates that there is an inconsistency in the validity period for an in-house production source of supply in the Advanced Planning and Optimization (APO) module. This error typically arises when the validity periods of the production source do not align with the planning periods or the demand that is being processed.
  Cause:
  
  Inconsistent Validity Periods: The validity period of the in-house production source does not match the planning horizon or the demand periods. For example, if the production source is valid only for a specific time frame, but the demand or planning is set for a different period, this inconsistency will trigger the error.
  Missing or Incorrect Data: There may be missing or incorrectly configured data in the master data for the production source, such as the production calendar or the lead times.
  Changes in Master Data: If there have been recent changes to the master data (like production versions, planning strategies, etc.) that have not been properly updated or synchronized, this can lead to inconsistencies.
  
  Solution:
  
  Check Validity Periods: Review the validity periods of the in-house production source. Ensure that they align with the planning periods and the demand being processed. You can do this by navigating to the relevant master data in SAP and checking the validity settings.
  Update Master Data: If you find inconsistencies, update the master data for the in-house production source to ensure that the validity periods are correct and consistent with the planning requirements.
  Review Planning Parameters: Check the planning parameters and settings in the APO system to ensure they are correctly configured to match the production source's validity.
  Re-run Planning: After making the necessary adjustments, re-run the planning process to see if the error persists.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on how to manage and configure in-house production sources and their validity periods.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/CTM for the CTM (Capable-to-Match) planning or /SAPAPO/MAT1 for material master data to check and update the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on resolving it.
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert who specializes in APO.
  
  By following these steps, you should be able to identify and resolve the inconsistency causing the error message /SAPAPO/CTM1311.