We have a project called " Test Project 1 ", which has some custom fields. We copied " Test Project 1 " to a second project called " Test Project 2 ". When we create an issue in " Test Project 2 " either via the UI or the API it always creates the issue in " Test Project 1 " and not " Test Project 2 " I tried this with a basic project and then copied the project in the UI to another project and in both cases where I created issues with the UI or the API it worked as expected. The issue (no pun intended) is that we will need to copy projects for testing and in many cases we will want to bring everything over. We need to understand what is the best practice and any issues with coping projects or building them from templates. Thanks, Tim Tim Shenton