https://learn.microsoft.com/en-us/office/vba/api/Outlook.DistListItem.AddMembers
DistListItem.AddMembers method (Outlook) | Microsoft Learn
Outlook VBA reference
methodoutlookmicrosoftlearn
https://developers-dot-devsite-v2-prod.appspot.com/data-studio/integrate/api/reference/permissions/addMembers
Permissions: addMembers | Integrate and share | Google for Developers
permissionsintegratesharegoogledevelopers