How To Fix /SAPAPO/MC01066 - The product is being referenced, class change not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 066

• Message text: The product is being referenced, class change not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MC01066 - The product is being referenced, class change not possible ?

  The SAP error message /SAPAPO/MC01066 indicates that a product is being referenced in a way that prevents a class change from being executed. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you attempt to change the classification of a product that is currently being used in various planning scenarios or transactions.
  Cause:
  
  Active References: The product is actively referenced in various planning objects, such as demand planning, supply network planning, or production planning.
  Locked Data: The product may be locked due to ongoing processes or transactions that are using it.
  Dependencies: There may be dependencies or relationships with other products or planning objects that prevent the class change.
  Master Data Issues: The product master data may not be in a state that allows for changes to be made.
  
  Solution:
  
  Check References: Identify where the product is being referenced. You can use transaction codes like /SAPAPO/MC62 (Product View) or /SAPAPO/MC63 (Product Master) to check for active references.
  Remove Dependencies: If possible, remove or deactivate any dependencies or references to the product before attempting to change its class.
  Unlock Data: Ensure that there are no ongoing processes that are locking the product. You may need to wait for these processes to complete or consult with your SAP Basis team to unlock the data.
  Use Change Mode: If you are trying to change the classification, ensure you are in the correct change mode and that you have the necessary authorizations.
  Consult Documentation: Review SAP documentation or notes related to this error message for any specific guidelines or additional steps that may be required.
  Contact Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it involves complex dependencies or system configurations.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for product master data management in SAP APO.
  SAP Notes: Search for SAP Notes related to this error message for any patches or updates that may address the issue.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to product classifications.
  System Logs: Check system logs for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the error message /SAPAPO/MC01066.