Check how to create a Jira issue through a link from external application, referring to a particular template
Issue Templates app allows you to create Jira issues by using an already prepared template via link from an external source. Use the following example to create your own issue:
http://jira/CreateIssueDetails!init.jspa?pid=10001&issuetype=1&&issueTemplateId=1
http://jira/
is an individual base URL. If you do not remember your base URL, visit your Jira administration system settings.If you can’t find the answer you need in our documentation, raise a support request.