Hello @AshuR9 ,
You should be able to login to your Pro account via the main login page. That said, if this is your first time logging in after upgrading to Pro, without the standard onboarding and integrating processes performed, you may have some difficulties working in the system. Since Pro uses a different, specialized system and user interface (once logged in), Pro customers should generally reach out to the specialized support team for assistance. Pro support can be reached one of the following ways:
We also have several Pro-specific articles in our Knowledge Base that cover several general questions. When you're making a search query in the KB, simply add "Pro" to the terms, and it should target articles specific to Pro users.