1.1 Enable Auto Proposal
In the admin panel navigate to Stores -> Configuration -> Cart2Quote -> Quotation -> Proposal
1.2 Choosing a strategy
With Auto Proposal it is possible to choose from two different strategies.
Tier pricing: Price proposals are sent automatically, based on standard catalog prices - including tier pricing.
Subtotal ranges: Price proposals are sent based on subtotal range settings.
After clicking "Add range" you're able to set either a Minimum value, Maximum value or both.
If you wish, you may set a discount percentage for a certain range.
The option above disables auto proposal. This will stop the proposal from being automatically sent in the specified range.
Optional shipping amount, with this option you're able to set the shipping price for a specified range. To make use of this option you will need to enable shipping amount.
Notify salesrep. This will send an automatic email to the assigned sales representative.