i am using 2 lists in my application, names are A & B.
In A,i have used people picker control to nominate users for sessions. Session column(calender and Date) is also present.
In B,i am using a textbox to take usersname who wants to take sessions again.
My requirement is " i want to restrict users for same sessions as they have already nominated."
Is it possible through OOTB.?
Please provide me answer .