Hi

I didn't find the exact solution what  I am looking for , Just Let me elaborate the Question

I have 2  Custom entities in CRM

Customers And Events ( New_ Customers and New_Events)

In the event entity i have single line of text field Email and lookup field Email Address which is related to customers entity ,  

now the events are coming from external sources and saving in CRM ,once they saved i need the Email to be populated in Email Address so that i can see the customer events in customer entity sub grid called events or is there any possibility to filter sub grid records based on Email (single line text in crm). because i created a sub grid with all records  in Customer entity . Is there any possibility to do this 

I need urgent help, Please help me

THANKS