How To Fix OT811 - Line &1: Truth value &2 cannot be used here

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 811

• Message text: Line &1: Truth value &2 cannot be used here

<ZK>&CAUSE&</>
You have defined an import condition that has the value &V2& in field
"Truth Value".
This value &V2& must not be used in this combination.
Import conditions are alloed different truth values 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: For truth value T, an import condition with prerequisite type
"A" or "C" must be defined for the same software component. This must
also have truth value T. For truth value F the import condition is
no longer required.</>
The following truth values applz to equivalent import conditions:
Prerequisite type "A": T / M
Prerequisite type "C": T / M
Prerequisite type "P": T

System Response

The import condition check was terminated.

How to fix this error?

Check the import condition and correct the entry with errors.
Import condition with errors (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 OT811 - Line &1: Truth value &2 cannot be used here ?

  The SAP error message OT811, which states "Line &1: Truth value &2 cannot be used here," typically occurs in ABAP programming when there is an issue with the evaluation of a boolean expression. This error indicates that the code is trying to use a truth value (true or false) in a context where it is not valid.
  Cause:
  
  Invalid Boolean Expression: The error often arises when a boolean expression is expected, but the code is providing a value that cannot be interpreted as a boolean (e.g., a numeric value or a string).
  Incorrect Data Type: The variable or expression being evaluated may not be of a boolean type, leading to confusion in the logical evaluation.
  Syntax Errors: There may be syntax issues in the code that lead to incorrect interpretation of the truth value.
  
  Solution:
  
  Check Data Types: Ensure that the variables or expressions being evaluated are of the correct boolean type. If you are using a numeric or string variable, convert it to a boolean if necessary.
  Review Logic: Go through the logic of the code to ensure that all conditions are properly defined and that they return a boolean value.
  Debugging: Use debugging tools to step through the code and identify where the incorrect truth value is being generated.
  Correct Syntax: Make sure that the syntax of the conditional statements is correct. For example, ensure that you are using IF, CASE, or other conditional statements properly.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on boolean expressions and data types.
  SAP Community: Check forums and community discussions for similar issues and solutions shared by other developers.
  Code Review: If working in a team, consider having a peer review your code to catch any logical or syntactical errors.
  
  By addressing the above points, you should be able to resolve the OT811 error in your SAP ABAP code.