Void checks using API 11.5.10.2

 Hi, we are on 11.5.10.2 of Oracle apps.

We have about 500 checks that need to be voided, i tried using the api

ap_void_pkg.Ap_Reverse_Check, this api creates the entries as if the check is voided, but does not update the status of the check to 'Voided', it still remains in 'Negotiable' status, is there anything i need to do? am i missing something?

Any help is highly appreciated.

fyi, below is the code fragment of the api i am using.

ap_void_pkg.Ap_Reverse_Check

( 

p_check_id => c_rec.check_id,

p_replace_flag =>'N'