Annual Leave Tracker

fred-at-map-room using Lists in the backend for storing requests and managing leave balances etc is fine but I wouldn't use Excel. Have a look at using Power Apps as the front end with lists as your datasource.  That would give you a more robust system, will look better and impress your manager! There is an annual leave template in Power Apps which should do what you need and plenty of videos on YouTube by people like Shane Young and Reza Dorrani to get you started. Also, have a look at the getting started  with Power Apps section on Microsoft Learn at https://learn.microsoft.com/en-us/training/powerplatform/power-apps

Rob
Los Gallardos
Microsoft Power Automate Community Super User.
Principal Consultant, SharePoint and Power Platform WSP Global (and classic 1967 Morris Traveller driver)