zoho desk extension to insert value in custom fields
I have created the following function Zoho desk in extension
ZOHODESK.set("ticket.customFields", "customFields":{"second phone":"123456799"}.then(function(response){ //response returns the name of the account associated with the ticket
}).catch(function(err)
{})
I get and empty error.
The same function it is working for the normal fields - I need to know what I need to change in order to set value for customFields from Extension.