How To Fix SALV_EXCEPTION016 - Invalid key setting: Key could not be set

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_EXCEPTION - Exception Messages

• Message number: 016

• Message text: Invalid key setting: Key could not be set

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_EXCEPTION016 - Invalid key setting: Key could not be set ?

  The SAP error message SALV_EXCEPTION016: Invalid key setting: Key could not be set typically occurs in the context of using the SAP ALV (ABAP List Viewer) framework, particularly when working with the SALV (Simple ALV) classes. This error indicates that there is an issue with the key field settings in your ALV report or display.
  
  Cause:
  
  Missing Key Fields: The key fields that are supposed to uniquely identify the records in the ALV output are either not defined or are incorrectly set.
  Incorrect Data Structure: The data structure being passed to the ALV might not have the required key fields defined.
  Duplicate Key Values: If the data being displayed has duplicate values for the key fields, the ALV cannot set the keys properly.
  Improper Configuration: The configuration of the ALV grid or list might not be set up correctly, leading to issues in key assignment.
  
  
  Solution:
  
  
  Check Key Field Definition:
  
  Ensure that the key fields are correctly defined