How do I add custom field to the Raise a Request screen in JIRA service desk

[Rangarajan Parthasarathy]

Setting new JIRA SD. Today for any incident / Change / Service Request we raise today I get a "Project KEY" word plus the sequence no. i.e. My Incident ticket Subject line says:

"VERTE-7 Test Incidents". 

How Do I add variables like "IM" for Incident, "CR" for Change Requests, "PM" for Problem and "SR" for Service Requests before every sequential tickets raised in SD. I.e.

1. When I create  new Incident / Issue ticket in JIRA SD - can I add "IM"+the running Incremental No?

2. When I create a Change Request - can I ADD "CR"+the running sequence no? 

Technically I wanted to REPLACE "VERTE-7" with "IM-7-Test Incident".

Similarly for Problem and Service Requests as well. 

[Tarun Sapra]

Hello @Rangarajan Parthasarathy

This is not possible is Jira as Jira service desk is an application interface over core Jira and under the hood JIra uses project keys followed by sequence number to identify issue keys. There is a similar question on this forum about having issue keys based on issue Types, please see here

https://community.atlassian.com/t5/Questions/changing-issue-key-for-a-specific-issue-type/qaq-p/193091