I managed to create 2 custom fields with the same name without receiving an alert.
To do this, you need:
create a field (not shared in the library) in a 1st project
create the same field (still not shared in the library) in a 2nd project
and then edit one of the 2 fields and share it in the library.
It then becomes possible to add 2 fields with the same name in a project.
I noticed that if you launch an advanced search with a filter on the field, then you can select only one of the 2 fields even though they have the same name.
Hi @Julien_RENAUD! It seems you created an Org-wide Test field and another Test field that is only associated with the project. As @lpb mentioned, this is currently expected behavior! However, please note you will only be able to search by the field that is added to the Organization library.
I can see nothing but confusion resulting from creating two custom fields of the same name, one organization-wide and one project-specific.
If I recall, I think the reason Asana allows it is because there are some built-in organizational dropdown list custom fields, and they didn’t want to block people from creating fields of that same name with different dropdown values.