Rules for custom attributes

The custom attribute name cannot contain spaces or special characters. It can contain numbers, underscores, and dashes.

The custom attribute value cannot contain @ character. Adjacent custom attributes can be used in the format @ca1@@ca2@.

The custom attribute value can contain special characters and spaces and must be enclosed in single or double quotes.

The custom attribute default value can be left blank.

References to other custom attributes in a custom attribute value are not supported and are considered as plain text.

NIC custom attributes cannot have default values.