Can I change an issue type based on a selection in another field?

[SSchoepel]

What I would like to do is have an initial issue type, say "customer call", that changes to a "complaint" issue type if you select a specific option in a selection field (and have it then display additional fields). Is there a way I can trigger an issue type change without copying the issue to the new issue type?

Ideally I will also have an issue type that spawns a new issue with a link to the original in another scenario.

Can I do this in fields and/or in a workflow?

[Bob Swift OSS (Bob Swift Atlassian Apps)]

You can update the issue type in a workflow post function. Use the Update issues from Update on Transition for JIRA. You will need to use conditioning with ubstitution of the custom field to only do the change when the selection field matches your criteria.

Similarly, for the create part, you can use Create Issue from Create on Transition for JIRA.