Firstly apologies for the fact there was no videos for the past couple of weeks. I have been away and then ill so did not want to record a video with me croaking. Normal service should be resuming.
In this week’s video we will see how you can use Lightning Process Builder and Flow to declaratively build roll up summary functionality for lookup relationships. The video shows the process being fired only on record create but I would update to also work on record update. To handle the situation where a record is deleted you would need to have a trigger fire still to manage the flow.