How To Fix OT823 - Line &1: Truth value &2 is not defined

OT823 - Overview

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 823

• Message text: Line &1: Truth value &2 is not defined

What causes this issue?

You have defined an import condition with the truth value &V2&.
Truth value &V2& is not known in the system.
Different truth values are allowed for import conditions depending on
the prerequisite type:
Prerequisite type "A": T / F / M / O
Prerequisite type "C": T / F / M / O
Prerequisite type "D": T (normal software components)
Prerequisite type "D": F (ANY_ADDON, OTHER_COMPONENTS)
Prerequisite type "E": T
Prerequisite type "P": T/F
<ZK>Note: An import condition with prerequisite type "A" or "C" must be
defined for truth value T for the same software component. This must
also have truth value T. The import condition is no longer required for
truth value F.</>
The following truth values apply to equivalent import conditions:
Prerequisite type "A": T / M
Prerequisite type "C": T / M
Prerequisite type "P": T

System Response

The check of the import conditions was terminated.

How to fix this error?

Check the import condition and correct the incorrect entry.
Incorrect import condition (line): &V1&

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OT823 - Line &1: Truth value &2 is not defined ?

  The SAP error message OT823 "Line &1: Truth value &2 is not defined" typically occurs in the context of ABAP programming, particularly when dealing with logical expressions or conditions. This error indicates that there is an issue with a boolean expression where the truth value is not properly defined or is invalid.
  
  Cause:
  
  
  Invalid Boolean Expression: The error often arises when a logical expression evaluates to a value that is not recognized as a valid boolean (true/false). This can happen if:
  
  A variable is not initialized.
  A variable is of an incorrect data type.
  There is a syntax error in the logical expression.
  
  
  
  Data Type Mismatch: If you are trying to evaluate a condition using a variable that is not of a boolean type, it can lead to this error.
  
  
  Null or Unassigned Variables: If a variable that is expected to hold a boolean value is null or unassigned, it can cause this error.
  
  
  
  Solution:
  
  
  Check Variable Initialization: Ensure