Hi @marcelodiasrib,
Some browsers such as Safari have begun blocking 3rd-party cookies by default already, so we do have some documentation available for working around this issue:
- https://auth0.com/docs/authorization/renew-tokens-when-using-safari
- https://auth0.com/docs/architecture-scenarios/implementation/b2c/b2c-architecture#custom-domains
The recommendation is to set up a custom domain. If you have different domains set up for each product, unfortunately, you will need a custom domain set up for each which would require multiple tenants as each tenant only supports one custom domain: