Employee Expenses Process in PowerApps

详细信息

Hello,I would like to develop an employee expenses process in PowerApps.
This should:1. Allow employees to submit an expense claim2. Forward it to his line manager he selects3. The line manager may then approve it and forward it for finance approval.
I am not really familiar with PowerApp and would need an explanation on how the model works or may be even how to build it myself.
Thank youMiro