Here is my Farming Simulator 22 (FS22) Playing Guide: Contracts.
To me farming and doing contracts is so essential functionality of FS17, FS19 and FS22 that its almost difficult to explain what contracts are and how they work, I mean ... don't you know this already?
But I'll try to write comprehensive contracting guide which includes awesome FS22 Better Contracts mod use as well.
Feel free to reply here if you find any errors, typos, etc issues on that page.