I am a SharePoint 2013 user, where I use Nintex Form and I need to create a data validation rule for one of the fields to make sure that the users add the correct data format.
Required format;
LLLLLLNNNNNNNNN
L= letter
N= Number
if avail on Nintex form or list column validation
You can use a regular expression
https://community.nintex.com/t5/How-To/Validating-a-Form-Control-with-Regular-Expression/ta-p/86661
Hey,
this should be it:
^[a-zA-z]{6}\d{9}$
u have to enter it here: