Single Value column - Row Owner

[ThinhDinh]

You can not use any computed columns as a row owner.

Row Owners vs. User Specific Columns

Correct. This is because computed columns (eg. lookup columns) are evaluated on the client device after all data has been downloaded. And by that time it’s too late to apply row owners. Yes, if a user changes their email address then they would lose access to all owned rows. You’d need to update all rows with their new email address. But, how often do your users change their email address? (I haven’t changed mine in 30+ years )