Problem in person not mapped to user in infotype

Hi All,

We have one scenario MM workflow here HR escalation paths defined .Here maintained one FM get Approver for requisition.in that Determine document value,after determine WBS element,after determine responsible person/position ,after maintained position holder,after that maintained determining userID.here workflow output giving person not mapped to user in infotype 1010 but HR functinal people is saying infotype maintained.

any one get the same problem plz help.

regards

Raj