Nowadays companies are using multiple bank accounts in several financial and payment institutions, payment processing systems etc due to the fact that the businesses are running in multiple markets (also related to VAT OSS, in order to collect the payments in different EU countries from B2C segment) . It is a problem, when several users start posting payment reconciliation journal - the posting takes a lot of time, sometimes more than 30 minutes or even hours.

In the same way as Microsoft introduced "Allow multiple people to post inventory/warehouse/project/resource at the same time", banks (and bank ledger entries) needs the same processing.