The request form is what customers fill in when they ask for a quote. In Form Settings you choose which fields are used and how they work.
Click a field to edit it. Common settings:
By default, the phone number must follow the rule /^\+[0-9]+$/. This means it must start with + and then have only numbers, for example +14155550123. Customers who type spaces, dashes or no plus sign see the error “Please enter a valid phone number.”
To accept other formats, edit the phone field in the Billing Address and change or clear the validation rule. You can also turn the phone field off, or make it not required.
If the customer fills in a shipping address, the plugin looks for your WooCommerce shipping options for that address and adds the first available shipping rate to the quote. You can change or remove it when you edit the quote.
In Pro you can add more fields. See Custom form fields.