How To Fix RU421 - Application indicator is missing or has the wrong value


RU421 - Overview

  • Message type: E = Error

  • Message class: RU - Messages for order completion confirmation

  • Message number: 421

  • Message text: Application indicator is missing or has the wrong value

  • Show details Hide details
  • What causes this issue?

    The parameter APPLICATION_FLAG contains a value that is either not
    supported or is initial.

    System Response

    A confirmation can only be processed if it is can be assigned
    unambiguously to an application using the parameter APPLICATION_FLAG.

    How to fix this error?

    The system supports the following:

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

    1 = HR
    2 = PP
    3 = PM
    4 = PS
    5 = PP-PK
    6 = PP-PI.

    Error message extract from SAP system. Copyright SAP SE.


RU421 - Details

  • The SAP error message RU421, which states "Application indicator is missing or has the wrong value," typically occurs in the context of financial accounting or controlling modules when there is an issue with the application indicator in a transaction or document. This error can arise in various scenarios, such as during document posting, data entry, or when processing certain transactions.
    Causes of RU421 Error
    
    
    Missing Application Indicator: The application indicator, which specifies the type of application (e.g., FI for Financial Accounting, CO for Controlling), may not be set in the document or transaction you are trying to process.
    
    
    Incorrect Value: The application indicator may have an incorrect value that does not correspond to the expected values defined in the system configuration.
    
    
    
    Configuration Issues: There may be issues in the configuration settings of the relevant modules, such as missing or incorrect settings in the document types, posting keys, or other related configurations. Data Entry Errors: Users

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