See below for creating a custom field.

To create a custom field

1. Log in as an administrator with the global_admin role.
2. Go to Control > Custom Fields.
3. Click Create and configure the following settings. 
   • Label
   • Required
   • Data Type
   • List Values
   • Validation Expression
   • Help Message

Label

The label of the field in the Create Certificate form.

Required

Yes when the custom field is mandatory; No otherwise.

Data Type

The data type of the field value. 

List Values

The list values separated by commas, when Data Type is List. 

Validation Expression

The regular expression the field value must match.

Help Message

The hover text displayed in the Create Certificate form.