Using 'contains' while writing validation in Project System

[sbhandepatil]

Hi, I need to use contains logic in validation which I want to use for ensuring that the WBS code contains WBS code of superior WBS. For example,

L2 WBS: P-000291-1

L3 WBS: P-000291-1-1

here I want to ensure that L3 WBS(P-000291-1-1) contains its superior WBS's code & not anything other than that can be allowed. How possibly I can use write this in std validations? Additionally, can someone explain the various symbols we can use that are available in validations/substitution window? or probably share link of blog where it has this information.

[Ken_Melching]

You will need to use the User Exit (custom code) option in validations to meet your requirement.