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

SAP Error Message - Details

• 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.

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 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 default.
  To fix the issue:
  
  Go to the transaction or customizing path where key figure categories are maintained (e.g., in Controlling: SPRO -> Controlling -> Cost Element Accounting -> Master Data -> Key Figures -> Define Key Figure Categories).
  Check the "Default" flag for each key figure category.
  Remove the default flag from all but one key figure category.
  Save your changes.
  
  
  
  
  Related Information:
  
  This message is a warning (W), not an error, so the system may still allow saving but it is recommended to correct it to avoid inconsistent behavior.
  The default key figure category is used in various reports and planning functions to pre-select or filter data.
  If you need multiple categories to be used frequently, consider other ways to facilitate selection rather than marking multiple defaults.
  Always test changes in a development or test environment before transporting to production.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message ID
  W0018
  
  
  Message Text
  Only one key figure category can be maintained as a default
  
  
  Cause
  More than one key figure category marked as default
  
  
  Solution
  Ensure only one key figure category is flagged as default
  
  
  Module
  SAP Controlling (CO) and related modules
  
  
  
  
  If you need further assistance, please provide the transaction or customizing path you are working with, and the SAP module context.