Information from multible sheet collected to one sheet

[Kartza]

I have a problem, that I have tried to solve.
I have a master sheet, that needs to collect all the data from multiple sheets and then place them order by number.
What I mean i have 3 folders where folder 1, folder 2 and folder 3. if a person takes work 1, then i want master sheet to tell that this number is received so folders 2 and 3 can only take the next available number.

[FDibbins]

Hi and welcome to the forum

I would suggest you upload a sample work book, (all sensitive data removed), showing what data you are working with, a few examples of what your expected outcome is, and how you arrived at that
To attach a file to your post,
click advanced (next to quick post),
scroll down until you see "manage file",
click that and select "add files" (top right corner).
click "select files" find your file, click "open" click "upload" click 'done" bottom right. click "submit reply"

Once the upload is completed the file name will appear below the input boxes in this window.
You can then close the window to return to the new post screen.