In the Custom Field Optimizer View, there are Custom fields with Global context and a column says used by ZERO projects. Not sure what does this mean?
1. Does it mean - there are No Active projects, which are using this field?
2. Does it mean - there could be Archived projects, which could be using this field, but since we have archived the project or issues within a project (which could have used it in the past, but archived now), hence it shows ZERO project.