Overhauling existing issue types when the project has a lot of existing issues of these types

[Jemima James]

I have a project with issue types A and B. There are hundreds of issues created with these two types. I want to change the existing template (fields) and workflow of these issues:

1. Remove fields not needed before (easily done)
2. Add new fields not present before (easily done)
3. Replace existing fields with new ones (this could be like a new field replacing a set of old fields or a set of new fields to represent a set of old fields)
4. Multiple workflows replaced by a single simple workflow

How do I do this? Is it wise to tweak on the existing project or should I create a new project and migrate the data? If I am migrating the data, how do I ensure that I don't lose important information?

[Ravi Sagar _Sparxsys_]

Hi @Jemima James 

You will have to migrate the data, there is not out of the box solution for this, especially when fields are of different types. I suggest you take a look at ScriptRunner for Jira, you can use one of its built in script to bulk copy data or write a script yourself to handle a bit more complex cases.

Take a look at this page: https://docs.adaptavist.com/sr4jc/latest/features/built-in-scripts/copy-custom-field-values-to-another-field

I hope it helps.

Ravi