Bapi to change the workcenter for CRQ2

Hi Experts,

I want to change record for CRQ2 using function module. I found one FM CRAP_WORKCENTER_CHANGE. I passed the inputs and i tried to change the description IN_CRHD_API01-ktext = 'sample text' and  IN_CRHD_API01X-ktext = 'X. IN_CRHD_API01X-CHANGE_FLG.

But the record is not getting updated. Please let me know the correction that i need to do.

Thanks.