When you delete a row, you'll see an alert/confirmation in the bottom-right corner of your screen for a few seconds. During this brief window, you can click "Undo" to recover the deleted row. Unfortunately, once this alert disappears, we are unable to recover the deleted row data.
Hi Anna, thank you for reaching out. Unfortunately, it is not possible to retrieve deleted rows or columns on Clay. Sorry I couldn't help you this time, but let me know if there is anything else I can help you with.