rebate problem

hi gurus

i did all the configuration setting for the rebates i maintained condition types as customer bo01 in vbo1 transaction i maintatined the amount in vbo1 i got agreement type but when am trying to see it . In billing document the conditontypes are not coming. Even though i maintained condtiontypes in the prcing procedure. But i am not getting condition tyeps. What could be the reason

Thanks in advance