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Next-gen and Classic projects are different when it comes to shared configuration, so currently, we can just bulk migrate tickets from one project to another. It will not be possible to change the project type only, because there is a lot of configuration from next-gen that doesn’t work on classic and vice versa.
To migrate to a Classic project, you can follow the steps of the documentation below:
If you have any other question regarding this matter, please let us know.
This is the default option when the site has Jira Software. If the only product is Jira Core, then it will be imported as a Classic project.
We have a feature request suggesting the implementation of this ability:
Regarding checkboxes, it won't be imported as mentioned in the documentation above. The workaround is to use an add-on on Trello and Jira. You can find the details in the article below:
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