Validation in PS

I am trying to use validation in the Project. Can any one tell when are the call up points 110 and 120 trigerred ?

I want to validate one of the user defined fields in WBS.

Everything is working fine when I simulate the validation. But when I enter a value in the user defined field and save the project then I do not get the error message as expected.

Does anybody have an idea what could be wrong ??

Answer :

Please see if you have checked the check box for Automatic validation in the relevant project profile.