Custom attributes let you add business-specific fields to personas in a name-value format: things like contract tier, preferred channel, or regulatory segment that don't fit standard persona fields.
Here is how to add the attributes step by step:
Add the Custom attributes section.
Populate it with data. You can either add values manually…
… or import them by pasting data, or from Google Sheets or a CSV/ Excel file.
Read also: Persona sections overview