How To Fix /SAPAPO/RBA108 - Key combination " &1 / &2 / &3 " already exists

/SAPAPO/RBA108 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RBA -

• Message number: 108

• Message text: Key combination " &1 / &2 / &3 " already exists

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 /SAPAPO/RBA108 - Key combination " &1 / &2 / &3 " already exists ?

  The SAP error message /SAPAPO/RBA108 Key combination " &1 / &2 / &3 " already exists typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you are trying to create or modify a key combination in the system that already exists. This error is often related to master data, such as characteristics and values in the context of planning or forecasting.
  
  Cause:
  The error is triggered when:
  
  You attempt to create a new key combination (for example, a combination of characteristics like product, location, and time) that is already defined in the system.
  The system checks for uniqueness of key combinations, and since the specified combination already exists, it raises this error.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Key Combinations:
  
  Use transaction codes like /SAPAPO/MC62 (for key figure combinations) or /SAPAPO/MC63 (for characteristic combinations) to view existing key combinations.
  Search for the key combination using the values indicated