Auth Token to integrate Ninja Forms to Zoho CRM

Auth Token to integrate Ninja Forms to Zoho CRM

Hi,
Using Zoho CRM Professional edition in trial mode.  Need to integrate Ninja Forms to Zoho.  Have a WP plugin for this and it requires authorization token.  I've read documentation but the buttons to get an auth token are not there in Zoho CRM.

I'm a super admin.  Is there some other way to request auth token?  api?

any help appreciated.

resolved.
have to enable two factor authorization