I need to assign the value in the event rule manual attribute

[SK5555]

Hello team, 

I need to add a value dynamically in manual attribute which are placed in event rule , 

additional information have  that field value , so i need to populate that filed value in the manual attribute, then only i can have the alert tags 

could you please let me know the solution asap , Thanks  

[Mark Manders]

Can you share what you are trying to do, because it sounds like a simple 'attribute = additional info'.

[SK5555]

I want to create alert tag clustering for correlation, so i have to use alert tags, it should contain t_prefix , t_prefix will come by alert tag(manual attribute), so creating manual attribute is okay, but i have to assign the value dynamically , which are placed in the additional information tags [], So i need to get that snowapp value from additional information tags and need to assign that value in manual attribute