#1
WooCommerce Request a Quote Plugin - Ask for Quotation
WooCommerce request a quote enables your potential buyers to ask for a price estimate right on a product or shop page. It saves the users from composing an email or reaching out to your support team through the contact us page.
#2
Cart to Quote for Woocommerce
User has the ability to add products in the quote list. It works like a cart (adding, removing, overview etc). After he has added all the desired products he can submit the list for quoting. At submission, a quote is created on the backend for the shop manager to review and the shop manager also receives an email notification.