I have one dataverse table which has 3 columns Section, SubSection and Elements (all text types). This table is filled with data where for each section there can be multiple subsections and same way for each subsections there can be multiple elements. Now I created another table where i added three columns Section, Subsection and Elements and all have lookup from first table. Now I added this second table in form. I want to show all three columns should have distinct values in form on the basis of data from first form. I added this simple formula to DataCardValue26 combobox which is not showing any error but when I tries to submit the form it is throwing error on same datacard: Value must be data entity record. I am using Modern controls. Distinct(([@'Role Requests'].'odms_ODELSection'),ODELSection.Section) The DataCardValue26 field is : The update property of Datacard is : DataCardValue26.Selected If I replace DataCardValue26.Selected.Value then error on .Value part shows "Expected Record Value" so i didnt change.