Admins can lock columns in a sheet to prevent Firm Members and client users from removing or modifying them.
Column locks only restrict editing on columns that originate from a sheet template. They don't restrict users from creating new columns or from editing manually-created columns inside an engagement's sheet.
To lock columns, follow these steps:
Open the Columns menu inside the sheet template.
Click Lock columns.
You can lock columns in a sheet template to apply this setting automatically to any sheets created from the template.
