To get the 18 characters Id of a record, Create a formula field using casesafeid() function and add to your page layout.
Use CASESAFEID( ) it is used to convert 15 characters Id to 18 characters id in Formula field in Salesforce.
To get the 18 characters Id of a record, Create a formula field using casesafeid() function and add to your page layout.
Use CASESAFEID( ) it is used to convert 15 characters Id to 18 characters id in Formula field in Salesforce.