Hi,

Have you tried using smartforms conditional validation when populating the people picker?

https://help.k2.com/onlinehelp/k2smartforms/userguide/4.6.11/default.htm#using_a_validation_pattern_and_rule_condition.html

Regards

Kallie

Hi K2A,

you can get current login user from System Values under Context Browser. 

• On Right hand side under Context Browser Expend System Values
• Then Expand Current User, here you will get  FQN , user name etc.

Create an event Rule.

Filter your list with Current user (filter based on FQN )

if it returns the record user is preset in list else not.

Let me know if this helps you.