How to prevent same file (duplicate file name)

Vault
#1

How to prevent same file (duplicate file name) in Vault or simple Vault

#2

Hello.

You may try to use the beforeAdd event to control the file adding procedure and block it on a needed condition:
https://docs.dhtmlx.com/vault/api__vault_beforeadd_event.html
Something like:
https://snippet.dhtmlx.com/ltrfuit7