Is there a way to only have certain things typed into a cell?

[Big Abalone]

Is it possible to have only "P3 000" the "0" means any digets, not more than
3 tho. be the only thing able to be entered?

 

[Big Abalone]

Is it possible to have only "P3 000" the "0" means any digets, not more than
3 tho. be the only thing able to be entered? What I mean is I only want some one to be able to enter "P3 and then one , but not more than 3 digits. For example P3 111 or P3 2, or P3 45. It is for a template for my dive spots.

 

[paul]

you could have data validation set in say cell A1 to allow whole numbers
between 1 and 999,and in another cell type ="p3"&a1