Hi SAP HCM!
Please look my reply to POIT Functional at Mar 17, 2014 7:02 AM:
I valuated also PERSG, PERSK and WERKS at process side and after that the process was valuated with new personnel number taken from number range.
Another way to solve this, is to get PERNR from number range by yourself in process via new Generic Service.
Best regards,
-Timo