How To Fix SALV_X_API091 - Key field(s) not contained in data structure of table

SALV_X_API091 - Overview

• Message type: E = Error

• Message class: SALV_X_API - Messages for ALV API exceptions

• Message number: 091

• Message text: Key field(s) not contained in data structure of table

Self-Explanatory Message

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SALV_X_API091 - Details

• The SAP error message SALV_X_API091 indicates that there is an issue with the key fields in the data structure of a table when using the SAP ALV (ABAP List Viewer) framework. This error typically arises when you are trying to display data in an ALV grid or list, but the data structure you are using does not contain the necessary key fields that are required for the ALV to function correctly.
  
  Cause:
  
  Missing Key Fields: The data structure you are using does not include the key fields that are defined in the underlying database table. ALV requires key fields to uniquely identify records.
  Incorrect Data Structure: The data structure may not be properly defined or may not match the expected structure of the ALV.
  Data Retrieval Issues: If the data is being fetched from a database table, it may not be retrieving the key fields correctly.
  
  
  Solution:
  
  
  Check Data Structure: Ensure that the data structure (internal