Approver against work item Owner validation

Accepted answer

What is the validation supposed to do?
In general it is possible to write custom preconditions and follow up actions and prevent certain actions.
Comments

The validation is expected to shoot an error message if the owner and the approver are same.
Trust its more clear now?
If this is possible, appreciate if you could share a sample to achieve this and thereafter I will try to construct more from there.
Thanks
DK

Some examples are here: https://rsjazz.wordpress.com/?s=advisor+work+item