Create a condition for FUBR determination and assign this to the FWO type.
Condition Type: /SCMTMS/FUBR
DAD:
Name of BO Used in Condition: /SCMTMS/TRQ
Name of BO Node Used in Condition: ROOT [Service level is available at item level also. If item level SL is required then use ITEM instead of ROOT]
Name of the Field of the BO Node: TRANSSRVLVL_CODE
Use '/SCMTMS/TRANSP_SLC_SALES' data element for input help.