I have created a custom module & work flow that whenever a record is created or modified a mail is sent. Everything works fine.
I want that when a record is modified in email body it should be included which record has been updated or modified.
Suppose my module has 15 fields, when it was created 4 records added & mail was sent that a new record has been created.
Next time when the record is modified, a mail is generated that the record has been modified.
I want to include newly updated fields & updated fields with data in email. So user gets in mail which data has been added/modified in that record.
Please guide how to achieve that.