How To Fix SDDIC_ADT_DDLX074 - Entity '&1' is not allowed to extend with metadata

SDDIC_ADT_DDLX074 - Overview

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 074

• Message text: Entity '&1' is not allowed to extend with metadata

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX074 - Entity '&1' is not allowed to extend with metadata ?

  The SAP error message SDDIC_ADT_DDLX074 indicates that an entity (such as a table or view) is not allowed to extend with metadata. This typically occurs in the context of the ABAP Development Tools (ADT) when working with Core Data Services (CDS) or other data modeling features in SAP.
  
  Cause:
  The error can arise due to several reasons:
  
  Entity Type Restrictions: The entity you are trying to extend may not support extensions. For example, certain system-defined entities or entities that are not designed for extension may trigger this error.
  Incorrect Metadata Configuration: The metadata configuration for the entity may not allow for extensions, possibly due to its definition or the way it was created.
  Authorization Issues: The user may not have the necessary permissions to extend the entity.
  Technical Restrictions: There may be technical restrictions in place that prevent the extension of certain entities.
  
  
  Solution:
  To resolve the error, consider the following steps:
  
  
  Check Entity Type: Verify if the entity