I know the documentation says you should leave it the same, but suppose I know I want the text field to be only 3 characters every time?
I can set it fine in custom fields, but when I go to enter data, and a user mistakenly puts in more than 3 characters, it throws a database error. Is there somewhere else besides the custom field specification where I can set up CiviCRM to validate user input?
(note: this can be reproduced on the civicrm demo server)