https://learn.microsoft.com/en-gb/dynamics365/business-central/reports/report-317
Vendor Pre-Payment Journal (report) - Business Central | Microsoft Learn
The report can be used to check payments before creating payment files and posting the journal.
payment journalbusiness centralvendorprereport
https://userapps.support.sap.com/sap/support/knowledge/en/3397723
3397723 - Due date is not calculated after changing the payment terms in Manage Journal Entries app
If the payment terms of a journal entry involving supplier or customer items are altered after it has been generated, the due date will not change accordingly.