How To Fix /SAPAPO/CTM1268 - In-house production source of supply &1 has been selected already

/SAPAPO/CTM1268 - Overview

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 268

• Message text: In-house production source of supply &1 has been selected already

Self-Explanatory Message

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/SAPAPO/CTM1268 - Details

• The SAP error message /SAPAPO/CTM1268 indicates that an in-house production source of supply has already been selected for a particular planning situation. This typically occurs in the context of Advanced Planning and Optimization (APO) when using the Capable-to-Match (CTM) functionality.
  
  Cause:
  The error is triggered when the system attempts to assign a production source to a demand that has already been assigned to another production source. This can happen due to:
  
  Duplicate Planning: The same demand is being planned multiple times, leading to conflicts in source assignment.
  
  Configuration Issues: The settings in the planning area or the production resources may not be configured correctly, leading to overlapping assignments.
  Resource Constraints: The production resource may have constraints that prevent it from being assigned to multiple demands simultaneously.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check Demand Assignment: Review the demand that is causing the error and check if it has already been assigned to a production source.