ContributionsMost RecentMost LikesSolutionsRe: Can a formula text field be used as the table's key?Hey folks - thanks so much for your question, and for the comments and answers! We noticed the discrepancy between the UI and the API around this issue, and had some concern about possible data integrity issues resulting from that. Data integrity is a critical issue to us, so we've made a change that will make the API behave the same as the UI - it will no longer be possible to set formula fields as keys via the API. That should appear in an upcoming release.