How To Fix /AIF/ERROR_HANDLING021 - Enter a valid interface in Customizing for "Error Handling"

/AIF/ERROR_HANDLING021 - Overview

• Message type: E = Error

• Message class: /AIF/ERROR_HANDLING -

• Message number: 021

• Message text: Enter a valid interface in Customizing for "Error Handling"

Self-Explanatory Message

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/AIF/ERROR_HANDLING021 - Details

• The SAP error message /AIF/ERROR_HANDLING021 indicates that there is an issue with the configuration of error handling for an interface in the Application Interface Framework (AIF). Specifically, it suggests that a valid interface has not been defined in the Customizing settings for error handling.
  
  Cause:
  
  Missing Interface Configuration: The interface you are trying to use for error handling has not been properly configured in the AIF Customizing settings.
  Incorrect Interface Name: The interface name provided may be incorrect or does not exist in the system.
  Transport Issues: If the configuration was recently transported from another system, it may not have been transported correctly or completely.
  
  
  Solution:
  
  
  Check Interface Configuration:
  
  Go to the AIF Customizing settings (transaction code SPRO).
  Navigate to the relevant section for error handling configuration.
  Ensure that the interface you are trying to use is defined and properly configured.
  
  
  
  Define Error Handling for the Interface:
  
  If the interface is not defined, you will need to create a new entry