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 `
|`||String||The customer's phone number as a string|
|`||[String]||An array of phone numbers associated with this customer|
|`||String||The customer's email as a string|
|`||[String]||An array of email addresses associated with this customer|
|`||String||The customer's Facebook name as a string|
|`||String||The customer's Instagram account name as a string|
|`||String||The customer's Twitter account handle as a string|
|`||String||The customer's LinkedIn name as a string|
|custom attribute||See [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.