Username only in lowercase characters and numbers

[vnihoul77]

You can convert your value using this parameter:

To add this as a condition/format during the user input you should take a look around some input validation plugin
Also maybe these threads can help:

Phone Number Input with Formatting - New Plugin from Zeroqode

We have just published a new plugin Phone Number Input with Formatting - this is an input field designed specifically for phone numbers. Users can select their country from a drop-down list and the input element would hint the right format. Plugin would also check whether the phone number format is correct and would return the result as a state. Plugin would also return the phone number in case it is correctly entered. You can try the working demo here: Zeroqode Phone Number Input with Format…

Input: Text (Numbers Only) validation issue

Hello While creating a form to collect a user’s SSN to be converted by Stripe, I added an input field and set the content format to “Text (numbers only)”. I also set the limit of characters to 9. Without adding any new conditionals, or changing anything else, it seems that whenever I try to fill in this input in test mode, it thinks it is invalid as indicated by it’s borders highlighting in red from Bubble’s pre-built conditional. This weird invalidation issue is also causing problems with me …