How To Fix WRF_APC127 - Enter either C for compare or S for sum

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 127

• Message text: Enter either C for compare or S for sum

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC127 - Enter either C for compare or S for sum ?

  SAP Error Message:
  
  WRF_APC127 – Enter either C for compare or S for sum
  
  Cause:
  This error occurs in SAP when a user is required to specify a mode of operation for a particular function or report, but the input field is either left blank or contains an invalid value. Specifically, the system expects the user to enter either:
  
  C — for Compare mode  
  S — for Sum mode
  
  If neither "C" nor "S" is entered, the system cannot proceed and throws the error message WRF_APC127.
  This message is commonly encountered in SAP modules related to APC (Activity Price Calculation) or Costing where the user must choose how data should be processed or displayed.
  
  Solution:
  
  
  When prompted, enter either "C" or "S" in the input field as per your requirement:
  
  Enter C if you want the system to compare values.
  Enter S if you want the system to sum values.
  
  
  
  If you are unsure which option to choose, consult your functional consultant or refer to the documentation for the specific transaction or report you are running.
  
  
  Ensure that the input field is not left blank and that no invalid characters are entered.
  
  
  
  Related Information:
  
  This message is part of the APC (Activity Price Calculation) or costing-related processes in SAP.
  The choice between "Compare" and "Sum" typically affects how the system aggregates or analyzes cost data.
  If this message appears during a custom report or user-exit, check the coding or input validation logic to ensure the input is correctly handled.
  For further troubleshooting, check the SAP Notes or the documentation for the specific transaction or report you are using.
  
  
  Summary:
  
  WRF_APC127 means you must enter either C (compare) or S (sum) to proceed. Enter the correct letter as per your requirement to resolve the error.