How To Fix WRF_PRC_SCD166 - Use WCHAIN1 for creation, WCHAIN2 for change, or WCHAIN3 for display

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_PRC_SCD - Purchasing Scheduling Seasonal Procurement

• Message number: 166

• Message text: Use WCHAIN1 for creation, WCHAIN2 for change, or WCHAIN3 for display

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_PRC_SCD166 - Use WCHAIN1 for creation, WCHAIN2 for change, or WCHAIN3 for display ?

  The SAP error message WRF_PRC_SCD166 typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with supply chain planning and the configuration of planning books or data views. This error indicates that there is a specific requirement for using different chains (WCHAIN1, WCHAIN2, WCHAIN3) for different operations such as creation, change, or display.
  Cause:
  The error arises when the system expects a specific planning chain to be used for a particular operation, but the wrong chain is either specified or not available. The message suggests that:
  
  WCHAIN1 should be used for creation processes.
  WCHAIN2 should be used for change processes.
  WCHAIN3 should be used for display processes.
  
  Solution:
  To resolve this error, you should take the following steps:
  
  
  Identify the Operation: Determine whether you are trying to create, change, or display data in the planning book or data view.
  
  
  Use the Correct Chain:
  
  If you are creating data, ensure that you are using WCHAIN1.
  If you are changing data, ensure that you are using WCHAIN2.
  If you are displaying data, ensure that you are using WCHAIN3.
  
  
  
  Check Configuration: Verify that the planning chains (WCHAIN1, WCHAIN2, WCHAIN3) are correctly configured in your SAP system. You can do this by:
  
  Navigating to the relevant transaction codes (like /SAPAPO/MC62 for planning chain maintenance).
  Ensuring that the chains are active and properly set up for the intended operations.
  
  
  
  Review Documentation: Consult the SAP documentation or help resources for more details on how to configure and use planning chains effectively.
  
  
  Consult with SAP Support: If the issue persists after following the above steps, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Planning Chains: In SAP APO, planning chains are used to define the sequence of processes that need to be executed for planning activities. Each chain can have different steps and parameters based on the operation type.
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing planning books and chains, such as /SAPAPO/MC62 for chain maintenance and /SAPAPO/MC84 for planning book configuration.
  Error Logs: Check the application logs (transaction SLG1) for more detailed error messages that might provide additional context for the issue.
  
  By following these steps, you should be able to resolve the WRF_PRC_SCD166 error and ensure that you are using the correct planning chains for your operations in SAP.