How To Fix CP643 - You have reached the last selected reference rate routing.

SAP Error Message - Details

• Message type: E = Error

• Message class: CP - Task list messages: Core data

• Message number: 643

• Message text: You have reached the last selected reference rate routing.

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CP643 - You have reached the last selected reference rate routing. ?

  The SAP error message CP643, which states "You have reached the last selected reference rate routing," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with cost planning or cost center accounting. This error indicates that the system has exhausted all available reference rate routings for the selected cost element or cost center.
  Cause:
  
  Exhaustion of Routing Options: The error usually arises when the system has gone through all the defined reference rate routings for a particular cost element or cost center and has not found a valid one to apply.
  Configuration Issues: There may be a misconfiguration in the reference rate routing settings, such as missing or incorrectly defined routings.
  Data Issues: The data being processed may not meet the criteria for any of the available routings, leading to the inability to find a suitable reference.
  
  Solution:
  
  
  Check Reference Rate Routings: Review the reference rate routings defined in the system. Ensure that there are valid routings available for the cost element or cost center you are working with.
  
  Navigate to the relevant configuration settings in SAP (usually found in the Controlling module) to verify the defined routings.
  
  
  
  Add or Modify Routings: If necessary, add new reference rate routings or modify existing ones to ensure that they meet the requirements of your cost planning or accounting processes.
  
  Ensure that the routings are correctly linked to the relevant cost elements or cost centers.
  
  
  
  Review Data Input: Check the data being input into the system. Ensure that it aligns with the criteria set for the reference rate routings.
  
  Validate that the cost elements and cost centers are correctly assigned and that there are no discrepancies in the data.
  
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on configuring reference rate routings and troubleshooting related issues.
  
  
  Seek Support: If the issue persists after checking the configurations and data, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP that pertain to cost planning and controlling, such as KP06 (Cost Center Planning) or KP26 (Activity Type Planning).
  SAP Notes: Check for any SAP Notes related to error CP643, as they may provide additional insights or patches that could resolve the issue.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP Controlling to better understand how reference rate routings work and how to manage them effectively.
  
  By following these steps, you should be able to identify the cause of the CP643 error and implement a solution to resolve it.