Use `describeCurrentCustomer` to add custom attributes to the Customer object of the customer logged into the chat.

## Describe Customer attributes

A list of all standard Customer klass attributes for `describeCurrentCustomer`:

`phone`StringThe customer's phone number as a string
`phones`[String]An array of phone numbers associated with this customer
`email`StringThe customer's email as a string
`emails`[String]An array of email addresses associated with this customer
`facebook`StringThe customer's Facebook name as a string
`instagram`StringThe customer's Instagram account name as a string
`twitter`StringThe customer's Twitter account handle as a string
`linkedin`StringThe customer's LinkedIn name as a string
custom attributeSee [Use custom attribute values](🔗).See [Use custom attribute values](🔗).

## Use custom attributes values

You can also send the SDK custom attribute values for custom attributes enabled in Kustomer.

**Always** use the attribute name instead of the Display Name listed in the Klasses editor (**Settings > Platform > Klasses**) in Kustomer. The attribute name will always be formatted in camelCase or PascalCase without spaces and also describes the data type for the attribute.

For example, if a custom attribute has a Display Name of "Avg Sat Score" and has a number data type, then the name may appear as `AvgSatScoreNum`. You would use `AvgSatScoreNum`, the system name for the custom attribute, with the SDK.

Activate custom attributes for the Customer klass

To update custom attributes, ensure you have the custom attribute key-value pairs activated for the Customer klass on the Kustomer platform. To edit or view custom attributes for the Customer klass, go to **Settings** and select** Platform > Klasses > Customer**.

To learn more, see [Define custom attribute in Kustomer](🔗) in the Kustomer Help Center.


Always send in the system name for custom attributes and check that the attribute is activated in the Klasses editor.