In my SharePoint online list I have column Serial and i want users to fillSerial in specific format like5CB34307L8,2CE0031NWX
I want users to input
- only uppercase letters
- only digits
- without space, commas and any wild characters
- Serial lengths can be variable.
By using the following formula I am able to restrict users to type only uppercase letters but i want to restrict to type without space, commas and any wild characters as well.
=IF(((CODE(MID(Serial,1,1))>47)+(CODE(MID(Serial,1,1))<58)+(CODE(MID(Serial,1,1))>64)+(CODE(MID(Serial,1,1))<91)+(CODE(MID(Serial,2,1))>47)+(CODE(MID(Serial,2,1))<58)+(CODE(MID(Serial,2,1))>64)+(CODE(MID(Serial,2,1))<91)+(CODE(MID(Serial,3,1))>47)+(CODE(MID(Serial,3,1))<58)+(CODE(MID(Serial,3,1))>64)+(CODE(MID(Serial,3,1))<91)+(CODE(MID(Serial,4,1))>47)+(CODE(MID(Serial,4,1))<58)+(CODE(MID(Serial,4,1))>64)+(CODE(MID(Serial,4,1))<91))=12,TRUE,FALSE)