Enable wildcard subdomains for Retail Cosmos

Hi Netlify Support,

I have upgraded my team to Pro and I’m building a multi-tenant SaaS application.

I need dynamic tenant URLs under:

*.store.retailcosmos.com

My Netlify DNS is already configured and the Let’s Encrypt certificate now includes:

*.store.retailcosmos.com

DNS:

*.store.retailcosmos.com → retailcosmos.netlify.app

However, visiting https://test.store.retailcosmos.com returns Netlify “Site not found”.

Please enable/verify wildcard subdomain routing for my Retail Cosmos site, and let me know if the current domain aliases/primary-domain configuration prevents wildcard subdomains from being enabled.

Site: retailcosmos.netlify.app

Use case: multi-tenant ecommerce SaaS with dynamically created tenant subdomains.