Forbidden error in custom portal after upgrading to 8.7.4

Hi,

The issue is after upgrading from 8.4 to 8.7. We have a custom portal with custom Governor role.

When Governor clicks on link to perform assignment forbidden is coming in portal. But when we add the default Developer portal to Governor, and launch the custom portal from there, screen is rendering properly.

Any idea on why the requestor is unauthorised when we directly access custom portal.

Thanks in adance.

Thanks again for your time.

@SwethaM

This could be due to BAC issue.

Please check the following post to get more details on this issue:

Error 403 Forbidden when typing an If conditional when making an Edit Input Java code | Support Center (pega.com)

@SwethaM please take a look at the following posts:

Unregistered Request Encountered on Refreshing launched portal

Pages not rendering properly after upgrade

@DileepKumarReddyD Thanks a lot.. The article you mentioned has helped.