Similar to this issue Can't setup Discourse ID: Application with this redirect URI already exists My self-hosted Discourse has this exact error. But the thread above was already closed and didn’t see the answer on how to fix, but happy that issue was resolved. Is it possible to help my forum as wel…

This should be resolved via PM now. The original issue was that this instance was registered a while ago, the server has issues, so the site manager had to reinstall Discourse and the credentials didn’t carry over.

Impossibile configurare Discourse ID: URI di reindirizzamento esiste già

Supporto

pmusaraj (Penar Musaraj) 9 Marzo 2026, 2:02pm 14

Inviami un messaggio privato con il nome di dominio del tuo sito e ti aiuterò a risolvere questo problema. Ci scusiamo per questo, stiamo lavorando a una soluzione più semplice.

Argomento		Risposte	Visualizzazioni
Can't set up Discourse ID: Application with this redirect URI already exists Self-hosting discourse-id	2	28	Marzo 9, 2026
Can't setup Discourse ID: Application with this redirect URI already exists Support discourse-id	4	105	Novembre 18, 2025
The Discourse ID cannot be used after changing the forum domain Support discourse-id	3	102	Febbraio 25, 2026
How Discourse ID works Site Management discourse-id	22	1813	Gennaio 24, 2026
Changing domain names prevents Discourse ID from working Support discourse-id	3	177	Ottobre 19, 2025

Impossibile configurare Discourse ID: URI di reindirizzamento esiste già

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