How To Fix K7209 - Variables &1 and &2 must have the same variable type

K7209 - Overview

• Message type: E = Error

• Message class: K7 - Messages for Row/Column Structure

• Message number: 209

• Message text: Variables &1 and &2 must have the same variable type

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 K7209 - Variables &1 and &2 must have the same variable type ?

  The SAP error message K7209 indicates that there is a mismatch in the variable types of two variables being used in a calculation or a report. This typically occurs in the context of SAP Controlling (CO) or when working with SAP Query, where variables are used to filter or manipulate data.
  
  Cause:
  The error arises when:
  
  Two variables are being compared or used together in a formula, and they are of different types (e.g., one is a character string and the other is a numeric value).
  The variables may have been defined with different data types in the system, leading to incompatibility when they are used in the same context.
  
  
  Solution:
  To resolve the K7209 error, you can take the following steps:
  
  
  Check Variable Definitions: 
  
  Go to the transaction where the variables are defined (e.g., transaction KOB1, KSB1, or the relevant report).
  Verify the data types of both variables involved in the error. Ensure that they are defined