Another thing, I have a need to update an already existing element created by the other stack in another backend. If I use a get method, I can't change values on the resource. If I create a new resource using import, I can't change any of the needed parameters, since the import will fail because of the mismatch. The only fix is to import the resource manually and let pulumi fix it on the next pulumi up. I know this isn't ideal, I should not have multiple stacks managing the same element, but I could not find an elegant way to solve this. This is the only way we could achieve this even manually. First an Azure App Service needs a CNAME matching itself to finish the custom domain configuration, then later we change this same CNAME pointing to an App Gateway, which is the final desired configuration.