How To Fix SADL_EXPOSURE058 - Entity &2 must be root because its base view &1 is root

SADL_EXPOSURE058 - Overview

• Message type: E = Error

• Message class: SADL_EXPOSURE - Errors During Exposure Compilation

• Message number: 058

• Message text: Entity &2 must be root because its base view &1 is root

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_EXPOSURE058 - Entity &2 must be root because its base view &1 is root ?

  The SAP error message SADL_EXPOSURE058 indicates that there is an issue with the entity definition in the SAP ABAP programming environment, specifically related to the SAP Data Access Layer (SADL). This error typically arises when there is a mismatch in the hierarchy of entities defined in your CDS (Core Data Services) views.
  
  Cause:
  The error message states that the entity you are trying to expose (denoted as &2) must be a root entity because its base view (denoted as &1) is already defined as a root entity. In the context of CDS views, a root entity is one that does not have a parent entity. If you attempt to define a child entity based on a root entity, it can lead to this error if the system expects the child entity to also be a root.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Entity Definitions: Review the definitions of the