Hello, I found out that when creating batch invoices, the number format of the invoices is not correct.
I use the Dutch/European number format in my system and when I create Batch invoices the number format used is the USA/English format.
It is a known issue. There are lots of inconsistencies of number and date formats around Manager. Batch functionalities, custom fields etc etc…
Batch functionalities, as for the current version, work only with #.00 and YYYY/MM/AA formats.