New Connect in Apex Classes

These classes are new.

Commerce

These new methods are in the ConnectApi.CommerceCart class.

Create a cart from an approved quote or duplicate a draft quote
Use the createCartFromQuote(webstoreId, quoteId, cartFromQuoteInput) method.
New input class: ConnectApi.CartFromQuoteInput
New output class: ConnectApi.CartFromQuoteOutput
Create a quote from an active cart
Use the createQuoteFromCart(webstoreId, activeCartOrId, createQuoteFromCartInput) method.
New input class: ConnectApi.CreateQuoteFromCartInput
New output class: ConnectApi.CreateQuoteFromCartOutput

These new methods are in the ConnectApi.CommerceQuotes class.

Create a quote from a product
Use the createQuoteFromProduct(webstoreId, productId, createQuoteFromProductInput) method.
New input class: ConnectApi.CreateQuoteFromProductInput
New output class: ConnectApi.CreateQuoteFromProductOutput
Initiate a quote renegotiation or decline a quote
Use the updateQuote(webstoreId, quoteId, updateQuoteInput) method.
New input class: ConnectApi.updateQuoteInput
New output class: ConnectApi.UpdateQuoteOutput
Get quote details for a user account
Use the getQuoteDetail(webstoreId, quoteId, effectiveAccountId, fields) method.
New output class: ConnectApi.CommerceQuoteDetail
Get all quotes for an account
Use the getQuotes(webstoreId, effectiveAccountId, fields, sortParam, pageSize, pageToken, earliestDate, latestDate) method.
New output class: ConnectApi.CommerceQuoteCollection