>>Create a custom record.
>>Create a new field in custom record
>>Select list/record type.
>>Select customer record in list/record.
>>Check record is parent.
>>Select communication as the subtab.
>>Add the other required fields.
>> save.
>>You can see the created customer record as a list under communication subtab and new record button under this sublist.
>>Here the name of the record is “Log Chat”.
>>Click on “New Log Chat” to view the custom record (new record).