Tek Siong, Hock
Feb 19, 20221 min
If the salesperson is assigned to the Sales Quotation or Invoice, he or she will be receiving email notification "You have been assigned to ...".
Go to the Settings -> Email -> Subtype.
Search for "Message Type" = Invoice or Sales Order, then remove the "Default".
It is also possible to stop auto followers to receive email by using apps, such as this app