Help needed with search help with ina search help

Hi all,
i have a field fld1 (non primary key )and to the dataelement of that field a search help is assigned in table ztable1.
That search help is referring to a table in which fld1 is primary key in ztable2.
I have created another search help with all the fileds in ztable1 and iam using this search help in a selection screen returning another field say fld2.
in this search help i have drill down for fld2, which in turn gives the fields of ztable2.
This is working fine.
i have created another search help with the fields of ztable1 but this time its its returning the value of fld1. for some reason in this search i am not able to see the drill downn for fld1 .
can anyone tell me how to get the drill down even the import parameteris fld1
Thanks

hi,
any suggestions on this
thanks

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