How To Fix EC420 - The subobject for interface &1 has already been created

EC420 - Overview

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 420

• Message text: The subobject for interface &1 has already been created

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message EC420 - The subobject for interface &1 has already been created ?

  The SAP error message EC420, which states "The subobject for interface &1 has already been created," typically occurs in the context of the SAP Environment Management (EM) or when dealing with Business Object Interfaces. This error indicates that there is an attempt to create a subobject for an interface that has already been instantiated or created in the system.
  
  Cause:
  
  Duplicate Creation Attempt: The most common cause of this error is that there is an attempt to create a subobject for an interface that already exists in the system. This can happen if the creation process is triggered multiple times, either due to user error or a programmatic issue.
  Incorrect Logic in Custom Code: If there is custom code or a custom program that handles the creation of subobjects, it may not be checking for the existence of the subobject before attempting to create it.
  Data Consistency Issues: There may be inconsistencies in the