On Custom button i am passing the url and In below code snippet Notes__c field is long text area field. when i click on custom button values are populating but in notes field if user mention comma then from comma text is not populating.
For example if notes have text - the user, parent account values are active. In above line only the User text is showing on button click.
{!URLFOR('/lightning/o/Request__c/new?
&recordTypeId=0220W000001PEqPQz0&defaultFieldValues=Request_Name__c)='+
(RetailCustomer__c.Request_Name__c)+Notes__c='+URLENCODE(RetailCustomer__c.Notes__c)}