In our content type (document set), we have a 'Name' column ('file' column type), that has the name of an applicant to a position.
Upon first designing the library, we thought we would have unique document sets for every applicant, in which we put every possible application. In other words: one file per person, with every application he/she makes inside. We enforced unique values to ensure we didn't have duplicate files.
However, afterwards we decided to have multiple files per application and add metadata to stipulate which position he/she wants etc.
I cannot seem to change the unique values that were enforced for that column before. On the column edit page, the 'enforce unique values' option is not visible.
This is causing colleagues to have to use "Firstname Lastname-", "Firstname Lastname--" etc. as names, which is rather silly.
Anyone know how to fix?
See image, it's in Dutch but shows the page without the possibility to edit the 'unique values' feature.