Look up not fetching all column values from DB

We have created a data table with embedded pages in it.Recently we have exposed embeeded pages(Delcare Index).

When we try to open data object using Data Page with source as look up, we are able to fetch embeeded pages as well but only few columns from embedded pages are fetched as aprt of look up.

Any idea why only few columns are being fetched as part of lookup.

@Priyanka_Konda The issue might be due to the configuration of the Data Page or the Declare Index. Ensure that all the required properties are marked as relevant records and optimized for reporting. Also, verify that the Data Page and the Declare Index are correctly configured to include all necessary columns.

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Expanding list Views > Available columns

Property modes > Embedded pages and pages lists

[Data Classes: Techniques to surface embedded page data on the top-level page LSA Data Ex

About Lookup data page and List data page