users receiving unwanted email

[Roshan]

Hi,
 
a user is receiving unwanted notifications. For example, if user B receives notifications from user A after approving/rejecting PO to B, user C is also receiving notifications from user A. How can I prevent user C from receiving these notifications?

Regards,
Roshan

[ErmanArslansOracleBlog]

check your workflow setup for that.
This is an functional issue.