I'm using this as a guide:
https://confluence.atlassian.com/jirakb/creating-issues-via-direct-html-links-159474.html
But can not get the customfield_XXXXX to work; the resulting "Epic Link" field on the page always remains blank.
I've examined the source of my HTML, and found XXXXX to be 10008, so I'm using the following:
/CreateIssue.jspa?pid=10000&issuetype=10001&customfield_10008=<value from my drop down>
The first two values are pre-populating the page fine, but the Epic Link field still remains unselected. Perhaps I'm using the wrong 'value'? How do I know what to use for this value?