How To Fix RSODP_ABAP_CDS210 - Data extraction via delta element requires at least one key element

RSODP_ABAP_CDS210 - Overview

• Message type: E = Error

• Message class: RSODP_ABAP_CDS -

• Message number: 210

• Message text: Data extraction via delta element requires at least one key element

Self-Explanatory Message

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RSODP_ABAP_CDS210 - Details

• The SAP error message RSODP_ABAP_CDS210 indicates that there is an issue with data extraction via a delta element in a Core Data Services (CDS) view. Specifically, it states that at least one key element is required for the delta extraction to function properly.
  
  Cause:
  The error typically arises when you are trying to perform a delta extraction using a CDS view that does not have a defined key field. Delta extraction relies on key fields to identify changes in the data since the last extraction. If the CDS view lacks a primary key or if the key fields are not properly defined, the extraction process cannot determine which records have changed, leading to this error.
  
  Solution:
  To resolve the RSODP_ABAP_CDS210 error, you can take the following steps:
  
  
  Check the CDS View Definition:
  
  Open the CDS view in the ABAP Development Tools (ADT) or the relevant transaction (e.g., SE11).
  Ensure that the view has at least one key