I have a requirement where field history of custom field Account_Update__c should be tracked as a log in an another custom field called Account_Update_Timeline__c which is a long text field.
I'm aware that we can do it OOB using object's field history tracking but I want to display the log on record detail page as a field.
Now, I found this link where it was suggested to use WF Rule to track the field value changes but i could only display last changed value instead of all the values as a log. I mean it should be as follows
datetime - oldvalue1 datetime - oldvalue2 datetime - oldvalue3
Do i need to make any changes to WF Rule here to display all the changes one after other or is there any better approach. Please suggest