When you create a partner account, anpage is added in the partner's admin portal. This page exists only in PingOne managed partner accounts. When you add an application from your PingOne SSO for SaaS Apps account, then enter the partner account, you will find the application you have added displayed on this page.
For partner accounts, you will configure the application connections from the Private App Catalog page in the partner's account.
Note: When you add and configure applications for a partner account, the application connections are displayed only in the admin portal for the partner account, and are not displayed on the Customer Connections page in your PingOne SSO for SaaS Apps account.