Glimps does the work, you read along
Connect your Microsoft 365 mailbox once and every invoice lands in Glimps by itself, also the reminder with the invoice attached and the invoice deep inside a mail thread. Nobody forwards invoices any more. Glimps reads the header and every line, codes per line, matches with the purchase order and posts to Exact Online. At every step Glimps records why, so you can read it all back afterwards. You set the limits up front, Glimps does the rest.