Magento 2 you can use sales quote address collect totals after the event to Collect address total related data after Magento completed the process for a current quote total.
Event Name to used:
sales_quote_address_collect_totals_after
Using the above event in the observer, you can fetch specific quote data, shipping_assignment, and total related data for a cart. Continue reading “Use of sales_quote_address_collect_totals_after events Magento 2.”