How To Fix AJ434 - Choose additional pressure calculation to take J-T effect into account


AJ434 - Overview

  • Message type: E = Error

  • Message class: AJ - Billing program

  • Message number: 434

  • Message text: Choose additional pressure calculation to take J-T effect into account

  • Show details Hide details
  • What causes this issue?

    If you want to take the Joule-Thomson effect into account, select the
    <LS>Pressure extra</> field to also calculate the pressure component.
    Normally, pressure is not calculated for <LS>Term.gas bill.</> 02
    (register takes temperature and pressure into account).

    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.


AJ434 - Details

  • The SAP error message AJ434, which states "Choose additional pressure calculation to take J-T effect into account," typically occurs in the context of process engineering or chemical engineering within SAP, particularly when dealing with the calculation of pressure in systems where the Joule-Thomson (J-T) effect is significant.
    
    Cause: The J-T effect refers to the temperature change that occurs when a gas expands or is compressed without any heat exchange with the environment. In certain processes, especially those involving gases, this effect can significantly influence the pressure and temperature calculations. The error message AJ434 indicates that the current configuration does not account for the J-T effect, which is necessary for accurate pressure calculations in the given scenario.
    Solution: To resolve this error, you need to enable the additional pressure calculation that takes the J-T effect into account. Here are the steps you can follow: Access the Configuration Settings: Go to the relevant transaction in SAP where you

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