Once the DNS changes are done, the platform will be live on the URL of your choice. If the platform is not accessible, first check on your mobile network. The most frequent case is you will be able to access it on your mobile but not on the institute network.
In this case, please approach your IT team, who will need to set up additional DNS records and check if anything is blocking the new domain in your internal network👇
Your IT team could query the name they added to <domain of choice> from your internal network. If it's not returning anything, they need to add it to your internal DNS.
The platform should be accessible once the IT team has made the necessary updates.