Welcome to the community and thank you for using ProConnect Tax Online. To enter your PTIN, please see this knowledge base as it will help you with this:

How do I enter my EFIN, PTIN, and ERO PIN into ProConnect Tax Online?

https://accountants-community.intuit.com/articles/1608409-entering-an-efin-ptin-and-ero-pin-in-the-p...

For your EFIN please see this knowledge base article:

How do I obtain an EFIN from the IRS?

https://accountants-community.intuit.com/articles/1606369-how-do-i-obtain-an-efin-from-the-irs