replacing employee ID with employee email ID as one of the field value in jira card.

[Shirisha chintala]

When I create a jira card, one of the mandatory field ( say Manager) is filled with employee ID (manager employee ID : xx12345).

Instead of this, I need the value as employee email ID ( Manager email ID : manager.ABC@xxx.com) or as user/employee name ( manager ABC).

Is it possible with Jira or do I need to write a script in Python for this? If so what could be the logic?