I would like to disable the option of creating next generation project on Jira cloud.

[jrajanna]

Hi All - We are migrating Jira from cloud to server instance. Since, the next generation projects feature is not available in Jira server. I would like to temporarily disable/hide the option to create next-generation projects. Please suggest

[Alexey Matveev]

Hello,

Go to global permissions and remove all groups from the Create next-gen projects permission.

You can find more info here:

https://confluence.atlassian.com/adminjiracloud/managing-global-permissions-776636359.html