Hello. A user form can be designed with drop down lists for selecting from items that are entered often so no typing mistakes are possible.
Also, for data thst must be typed in, if some data MUST be numbers, then code can be added to ensure only numbers are typed. Same with dates, although a date picker could be used instead.
If you supply me with a sample of the workbook, I can give you a basic plan of what the user form would look like and which items can have error checks built in. If you approve it, the final product can be delivered in a couple of days.