Quotations modules is almost same as in v2.3. The only change is add quotation page redesign that is similar to the add sale page with the following status
1. Pending: The quotation has been generated but not yet sent to customer.

2. Sent: The quotation had been generated and sent to the customer. Emailing the quotation will automatically change the status to sent.

3. Completed: The sale had been generated for this quotation. Add invoice link on the quotation menu will automatically change the status to complete once the sale generated.