Client was NJ resident Jan to Oct and NY resident Nov/Dec and worked in NY all year at multiple employers.  W2's only have NY withholding and NY EIN.  How do I get the correct amount of wages allocated to NJ?  I tried using multi-state on W2 input but that seems to require employer to have NJ EIN?  I tried entering correct amount on screen 50.081 NJ Income but it seems like if I do that, the NJ return can't be efiled.  Any insight greatly appreciated.  Thank you.