Document security is controlled by the user role security settings (permissions) for the document’s lifecycle state. However, there are times when additional security is required at the document field level.
Many organizations need to prevent users from editing Major Version and Minor Version when initially creating a document. Field-level security (FLS) allows Admins to set fields as read-only, hidden, or editable for specific users or groups.
Is there a limit of Security Overrides for a Document Field in Vault?
No, there is not a limit for Security Overrides for a document field in Vault.
Vault Help Documentation: Configuring Field-Level Security on Documents