You are unable to print multiple records for 1 report for different customers.

Go to the Sales Orders.
Find orders that have the same value in a/multiple field(s) from different customers and Filter on it/them.
Example:
“Salesperson Code” = ‘KS’ and “Document Date” = '01/05/18..'
https://i.imgur.com/0csLt34.png

Now we want to print the order confirmation for these orders.
https://i.imgur.com/uhwChhK.png

Observe the reports
https://i.imgur.com/v9c7hqb.png
Only the first selected order is printed.

It seems like the report doesn't take the filters on the requestpage in account.
However it does, but before that all the orders are already filtered on the selected record to apply the custom report layouts for that customer.

Make it possible to print multiple reports from different customers.

(perhaps an extra loop around the customer report layout functionality to apply for multiple different customers?)

MS Call 118101819242689
Discovered on NAV2018CU8-BE = 11.0.23572.0
But also fails on BC BE Dynamics NAV 13.0 (25789)
https://imgur.com/a/WVug3CO