When to define artifacts expire_in

GitLab CI/CD
1

Hi,

I have multiple jobs across various stages that use the same artifacts and add stuff to it. So in my gitlab.yml file I have the following lines multiple times:

artifacts:
    paths:
     - FolderXY/
    expire_in: 3 days

When do I specify the expiry duration? The first or the last time that I use the artifacts?

Thanks,
oz