Hi,
Check - How setting done for your output type "Individual Slip" in for MIGO as by using t.code: OMJN for field RM07M-WVERS1.
Cross check status of fields GOHEAD-XNAPR and RM07M-XNAPR with t.code: OMJN
Also cross check the assignment of your printer to WE01 output type in t.code:OMJ3 with Plant and Storage Location which causes your concern!
Regards,
Biju K