Identify any four errors in the diagram below

Order delivery Order Order Customer Warehouse 1.0 Order rejection/ acceptance notice Information Fill order Delivery status 2.0 Customer Information 2.0 Retrieve data from Warehouse Invoice Invoice Orders Create invoice Accounts receivable register Orders Inventory 3.0 Invoice and payment details Order items for availability check Apply payment Payment Cash receipts entry Bank deposit Accounting Apply bank deposits 4.0 Update ledgers