Hey @gundamaiah.a5,
FYI, another method to give a user a different Display Name (rather than firstName and lastName) is if you are using SSO you can use a SAML mapping to add new Display Name. Once you enable this, the user will see the new Display Name attribute in their profile, however it will be greyed out and they cannot modify it. Please note as @MaxM mentioned, currently there is not an API that will allow you to modify this Display Name attribute. It will only be modified/updated via SAML when the user SSO’s into Zoom.
There was previously another method modify your meeting join links using Client URL Schemes however this is currently Deprecated. It may OR may not come back in future.
Thanks
Dan