Column editing now respects Custom Views permissions in Help Desk

What it is

Editing and reordering columns in Help Desk views now requires the Custom Views permission. Users without it can still open views but cannot change their columns.

Why it matters

Previously, any Help Desk user could change the columns in a view, and the change applied for everyone on the team. Admins now decide who can make those changes, so agents see the same layout they set up.