Clearing a FIELD in BDC

Hi Gurus,

I Have Created a BDC for transaction CA01.

In the first screen of above trsnaction there is screen field 'RC271-PLNNR' . I need to Clear this field using BDC program how can I do this. I have done like below code

PERFORM bdc_field USING 'RC271-PLNNR'

' '.

but this is not working.

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regsrds

Rajesh

Edited by: Julius Bussche on Sep 1, 2008 8:45 AM