Help with Domain in Vercel and Clerk

Subject: Vercel Marketplace integration — "Change Configuration" fails when setting production domain Hi Clerk team, On my Vercel-Marketplace-managed Clerk instance I'm trying to set the production domain so I can move off the placeholder dev setup. The dashboard Danger Zone directs me to set the domain via the Vercel integration. In Vercel → Integrations → Clerk → clerk-kompanionkare → Settings → Change Configuration, I enter my production domain "kompanionkare.com" (no paid add-ons) and click Continue, but it consistently fails with: "Configuration update failed. Client received an unexpected response from the integration server. There was an error processing your order. Please try again later." This persists even after adding a payment method. Details:

Clerk app ID: app_3EE7wqzEwdNLTfG7zu0qJIqTeS5
Resource: clerk-kompanionkare
Vercel project: kompanion-kare (team: jerseymark)
Desired production domain: kompanionkare.com (already Valid in Vercel)
Env vars are pk_live/sk_live, but the integration shows "Production domain required — using development keys."
Current placeholder home domain: curious.piglet-19.lcl.dev (DNS 0/2 verified) Can you set the production domain on your end, or advise how to get past this integration-server error? Thanks.

Anyone have any idea or can point me in the right direction to correct this error. I try to connect my domain to Vercel and Clerk and get error.

Hi,

To separate the Clerk configuration from the domain configuration, I’d first check whether the custom domain works at all without considering authentication.

A few questions:

Does the custom domain load the site, or does it fail before the app renders?
Is the issue happening only during sign-in/sign-up redirects?
Have you added the custom domain in both Vercel and Clerk?

A common issue is that the domain is correctly configured in Vercel, but Clerk is still using the old development or preview URL for redirect/auth settings.

If you can share the exact error message (with secrets removed) and whether the domain itself loads successfully, that should make it easier to narrow down.

Clerk app ID: app_3EE7wqzEwdNLTfG7zu0qJIqTeS5
Resource: clerk-kompanionkare
Vercel project: kompanion-kare (team: jerseymark)
Desired production domain: kompanionkare.com (already Valid in Vercel)
Env vars are pk_live/sk_live, but the integration shows "Production domain required — using development keys."
Current placeholder home domain: curious.piglet-19.lcl.dev (DNS 0/2 verified) Can you set the production domain on your end, or advise how to get past this integration-server error? Thanks.