When we deploy from Integration -> Preprod, or Preprod -> Production via the DXC PaaS Portal, I would like to create an integration to some internal tooling to post notifications. Is there a webhook or some other kind of integration that we can use when these processes are completed?
I'm not quite familiar with DXP PaaS portal. Alternatively, you can easily achive this by using Deployment API. Take Azure DevOps example, you can add custom tasks in your release process to send notifications, add approvers etc.
I hope above helps.