rel strat

hi,

i have defined rel strategy for following

10000 - 100000-----REL RS CODE A1

>=100000----

REL RV CODE B1

sinc e v r not defining any workflow how can i restrict both users to thier respective rel grps and codes .as v had 2 rel transactions ME29N,ME28

SO BOTH HAVE FREEDOM TO USE ANY ONE.i want that one should not be able to use others rel grp or code .

solve it plz