The information in this article applies to product: e-Work 6.x
Discussion
Setting the variable %User.Error, which is only available at an action, causes the commit to fail and causes the error message specified by the developer to be given to the user.
It also writes a message similar to the following to the Designer log, which can be accessed through the Services Manager:
'%error' failed while evaluating expression '%User.Error:=Custom Error Message' Variable =User.Error access failed. Position: 51