It turns out, no. EWM does in fact need DCC (wether it also needs the DW, I'm not sure yet) for the reports. Also, the license reporting in JTS fetches it's data from DCC. So, @Fariz, it seems it is not entirely correct.
Albeit you can get away without DCC/DW if you're only using RM, QM, ReportBuilder, GC, ...
Regards,
Lukas
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