To identify surrogate key columns with the "Summarize By" property set to a value other than "None," the Best Practice Analyzer in Tabular Editor is the most efficient tool. The Best Practice Analyzer can analyze the entire model and provide a report on all columns that do not meet a specified best practice, such as having the "Summarize By" property set correctly for surrogate key columns. Here's how you would proceed:
Open your Power BI model in Tabular Editor.
Go to the Advanced Scripting window.
Write or use an existing script that checks the "Summarize By" property of each column.
Execute the script to get a report on the surrogate key columns that do not have their "Summarize By" property set to "None".
You can then review and adjust the properties of the columns directly within the Tabular Editor.