How to make existing custom schemes as default schemes for JIRA Service desk project. ?

srinivasa_pudi

Whenever I create new service desk project it needs to be assigned to all some particular schemes which I have configured?

Bhushan Nagaraj_ae5psb

Unfortunately yes. Whenever you create a new Service Desk project JIRA automatically creates new schemes. 

Your other option is to create a project using the JIRA default project type and then assign your custom schemes to the project. This way you can avoid the new schemes being created for each project.