How To Fix W0018 - Only one key figure category can be maintained as a default

W0018 - Overview

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 018

• Message text: Only one key figure category can be maintained as a default

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W0018 - Only one key figure category can be maintained as a default ?

  SAP Error Message:
  W0018 - Only one key figure category can be maintained as a default
  
  
  Cause:
  This warning message occurs when you try to assign more than one key figure category as the default in SAP. The system allows only one key figure category to be marked as the default at a time. If multiple key figure categories are flagged as default, the system raises this warning to prevent ambiguity in processing or reporting.
  
  Explanation:
  
  Key figure categories are used in SAP Controlling (CO) and other modules to group key figures logically.
  One key figure category can be set as the default to simplify selection and processing.
  Having more than one default key figure category can cause conflicts in reports, planning, or data entry screens where the system expects a single default.
  
  
  
  Solution:
  
  Review the key figure categories you have maintained.
  Identify which key figure category is currently set as default.
  Ensure only one key figure category is marked as