Trigger workflow or action after Assignment rule trigger

HI all,

I have a self host Frappe CRM running, i have set an assignment rule when new lead created. I have events needs to trigger after “assignment” triggered internally say sending an email etc.

How do i achieve so given that i have webhook ready.

Regards,
James

give me solution
i change in frappe lead ui but but reflect in ui so how to resolve my this error