We'll take a quick look at the first part control's properties. The part property is page 1441 "Headline RC Order Processor":
Headline pages are used to show KPI information to the users and they are the first thing the users see when opening Business Central.
There is a special PageType property called HeadLinePart, and the RefreshOnActivate property is used to make sure new information is displayed when the Role Center updates.
More information can be found on Microsoft Docs, at https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-create-role-center-headline.
