How To Fix AJ429 - Do not suppress temperature calculation when Joule-Thomson effect is used

AJ429 - Overview

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 429

• Message text: Do not suppress temperature calculation when Joule-Thomson effect is used

What causes this issue?

If you want to take the Joule-Thomson effect into account, you cannot
suppress the calculation of the temperature.
In this case, you cannot select the <LS>Without temperature</> field.

System Response

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

How to fix this error?

INCLUDE ISU_KORR OBJECT DOKU ID TX

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

AJ429 - Details

• The SAP error message AJ429, "Do not suppress temperature calculation when Joule-Thomson effect is used," typically arises in the context of process engineering or chemical engineering applications within SAP, particularly when dealing with thermodynamic calculations.
  
  Cause:
  This error message indicates that the system is attempting to suppress the temperature calculation while the Joule-Thomson effect is being considered. The Joule-Thomson effect describes the change in temperature of a real gas when it is allowed to expand freely at constant enthalpy. In scenarios where this effect is relevant, the temperature must be calculated accurately to ensure that the thermodynamic properties are correctly represented.
  
  Solution:
  To resolve this error, you should ensure that the temperature calculation is not suppressed when the Joule-Thomson effect is being utilized. Here are some steps you can take:
  
  
  Check Configuration Settings: Review the configuration settings in your SAP system related to thermodynamic calculations. Ensure that the settings allow for temperature calculations when the