How to Create New Issue with Different Project during Post Function
This problem is related to a third party plugin, and therefore not supported by Atlassian. See Atlassian Supported Plugins for more information.
User would like that when an issue is transitioned to a particular status, such as (escalated), it will create a new ticket in a different service project with all the current details.
Then , at post function , add Script Post-Function and select Clones an issue and links . You may refer Built in Script for Clones and issue and link document.
Note : This add on's is not supported by Atlassian Support
Built in Script for Clones an Issue and Link
It clones the current issue to a new one. All system and custom fields are copied from the source issue.
You can specify an issue type and/or target project, but if you leave them blank the newly cloned ticket will have the same project and type as the cloner.