Hello, In the link popup (see attached). Composio currently only lets users set API Key. However as per your documentation for eu / self-hosted we need to set subdomain (see second attached screenshots). The current behavior is that this defaults to US meaning the composio managed auth can't be used by anyone on eu or selfhosted. The fix: add subdomain to the link pop-up https://cdn.discordapp.com/attachments/1468980480010358958/1468980480698482945/image.png?ex=6985fe2e&is=6984acae&hm=cd733dc30a95f21a42960dd6b5b2e7fd34b25f81d1e4fa9db8f75a161f49742b& https://cdn.discordapp.com/attachments/1468980480010358958/1468980480991957042/Screenshot_2026-02-05_at_15.42.56.png?ex=6985fe2f&is=6984acaf&hm=fa0f1bb4a08dece063dfa1bcdae990bf6719eaa838844f0a820adfa319394070&

Hey @aeve, you can configure the Subdomain while creating an authConfig. https://cdn.discordapp.com/attachments/1468980480010358958/1468984251931164862/Screenshot_2026-02-05_at_20.27.36.png?ex=698601b2&is=6984b032&hm=4f37a7e38a16d320318512e8737810181747782fa6fe2e285f6242b687035ce4&

@Uday hmm. Okay that's good news but wouldn't this mean we have to set up unique authConfigs for every available option that is hard-coded? This will primarily be used by our customers to connect so would be ideal if they could set this themselves as the above seems like a workaround.

I see, let me check with the team.