How To Fix WES_OUTBOUND002 - Application &1 is not defined in customizing

SAP Error Message - Details

• Message type: E = Error

• Message class: WES_OUTBOUND - Messages for Outbound Services

• Message number: 002

• Message text: Application &1 is not defined in customizing

Self-Explanatory Message

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• What is the cause and solution for SAP error message WES_OUTBOUND002 - Application &1 is not defined in customizing ?

  SAP Error Message:
  
  WES_OUTBOUND002 Application &1 is not defined in customizing
  
  Cause:
  This error occurs when the SAP system tries to process or send outbound messages (e.g., IDocs, ALE, EDI) for an application that has not been properly defined or maintained in the system's customizing settings. Specifically, the application identifier (represented by &1 in the message) is missing in the relevant configuration tables or settings.
  In other words, the system expects an application definition for outbound processing, but it cannot find it in the customizing (IMG) settings.
  
  Typical Scenario:
  
  When setting up ALE/IDoc distribution model or outbound processing, the application (message type or application area) must be defined.
  If a custom or standard application is used but not maintained in the customizing, this error appears.
  It can also happen if the application name is mistyped or if the customizing transport was not imported correctly.
  
  
  Solution:
  
  
  Check Application Definition in Customizing:
  
  Go to transaction WE30 (IDoc Type Development) or WE31 (Segment Editor) to verify the application/message type.
  Use transaction WE20 (Partner Profiles) and check the outbound parameters for the application.
  Use transaction SALE or BD54 to check ALE distribution model and ensure the application is defined.
  
  
  
  Maintain Application in Customizing:
  
  Navigate to the IMG path:
  SPRO -> SAP Reference IMG -> Logistics - General -> Business Communication -> IDoc Interface / Application Link Enabling (ALE) -> Basic Settings -> Application
  
  Or directly use transaction WE21 or WE42 depending on the context.
  Define or maintain the missing application name.
  
  
  
  Verify Message Type and Application Link:
  
  Ensure that the message type is linked to the correct application.
  Check if the application is assigned to the outbound process.
  
  
  
  Check for Typographical Errors:
  
  Verify that the application name used in the program or configuration matches exactly with the one defined in customizing.
  
  
  
  Transport and System Consistency:
  
  If this is a new application or customization, ensure that the customizing transport has been imported into the system where the error occurs.
  
  
  
  
  Additional Information:
  
  The placeholder &1 in the message will be replaced by the actual application name causing the issue.
  This error is common in ALE/IDoc scenarios where outbound processing is involved.
  Proper definition of applications and message types is crucial for smooth IDoc processing.
  If you are working with custom developments, ensure that all necessary customizing entries are created before running the outbound process.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Application (application name) not defined in customizing for outbound processing.
  
  
  Solution
  Define the application in customizing via IMG or relevant transactions (WE20, WE21, etc.).
  
  
  Related Transactions
  WE20, WE21, WE30, BD54, SALE, SPRO (IMG)
  
  
  Context
  ALE/IDoc outbound processing, message type configuration.
  
  
  
  
  If you provide the exact application name or scenario, I can help with more precise steps.