Hello, As an additional note: in the bug https://bugs.otrs.org/show_bug.cgi?id=13565 Sanjen mentioned that the modules (along plenty of others) were included in the original OTRS package, which were not included in Debian. (Also for bug#887517.)
I believe you wanted to use the separate already packaged libs, and I fully support it, however you definitely should check all the libs in .../Kernel/cpan-lib/ and either put them in Depends / Recommends (when they're Debian packaged), or include them in .../cpan-lib/ (when they aren't packaged yet) since missing they may cause really bad crashes inside various functionalities. The bug can be "manually" fixed by downloading the original OTRS6 package and copy .../cpan-lib/ into its place, but... it's a hack. Thanks.
