I have a count of Alert whose assignee is Mr. X, i want to assignee these alerts to Mr. Y .
Kindly guide the steps for this through scriptrunner.
I assume by "alert" you mean you have an issue type called "alert"
You don't need Scriptrunner for this. Search for issuetype = alert and assignee = "Mr X" and then use "bulk edit" from the options menu in the result list. You'll be able to select changing the assignee to Mr Y in there.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.