Maximum Character Length Add-On can limit the maximum number of characters a user can type in a field added and managed by Profile Builder.
Install the Maximum Character Length Add-on
First of all, click on the button below to download the add-on. Once downloaded, you can install the add-on as a normal WordPress plugin, by uploading the .zip file in your WordPress Admin -> Plugins -> Add New -> Upload Plugin.
Alternatively, you can install the Maximum Character Length Add-On by extracting the folder found inside the archive and uploading the entire folder via FTP to your /wp-content/plugins folder found inside your WordPress install.
Set the Maximum Character Length
After you install and activate the add-on a new option will be available for your fields in Profile Builder -> Manage Fields.
All you need to do is set the desired value. You can also modify this value when editing one of these fields.