Stock sheet Update from when job it completed


I was wondering is can be used to fill in a job sheet in drobox? with the customers details? All details are entered onto a Monday’s calendar.
Also manage a stock system, currently running in excel on 3 different tabs. I have engineers out on the road we assign them jobs via Mondays calendar feature. All the customer details are on the board. they mark the job competed and currently fill in and excel job sheet. document
I was wondering if there is a way of when the engineer finishes the job, he can directly update the stock sheet to say what he has used?
Is there anyone who can develop a system or recommend one?

thanks in advance