Jobs module, difference between Schedule and Contract in job planning lines

Hi everybody,

I have a problem in that I don’t really understand the alternatives Schedule and Contract in the job planning lines. I have read the education material but it’s still not clear to me. I thought that if I selected on “schedule” then this something that I only plan to do but I won’t invoice later on. Contract was somehow the opposite and when I select contract+schedule, then it is planned and I will also invoice for this. However, I saw in Cronus that this must be wrong because there was project in which some of the lines were “schedule” and it still comes out on the invoice. Could someone please explain the functionality for me, sorry for being stupid…

Thanks for your help.