How To Fix /IWBEP/SBDSP_UI034 - Only attributes can be selected

/IWBEP/SBDSP_UI034 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBDSP_UI -

• Message number: 034

• Message text: Only attributes can be selected

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.

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/IWBEP/SBDSP_UI034 - Details

• The SAP error message /IWBEP/SBDSP_UI034: Only attributes can be selected typically occurs in the context of SAP Gateway or OData services when there is an attempt to select a non-attribute field in a query. This error indicates that the system expects only attributes (fields that are part of the entity's definition) to be selected, but a non-attribute field (like a navigation property or a complex type) has been included in the selection.
  
  Cause:
  
  Selection of Non-Attribute Fields: The most common cause is that the OData query is trying to select fields that are not defined as attributes in the entity model. This can happen if the query is constructed incorrectly or if there is a misunderstanding of the entity structure.
  Incorrect Entity Definition: The entity definition in the OData service may not be correctly set up to expose certain fields as attributes.
  Navigation Properties: Attempting to select navigation properties directly in the query can