Parameter Validation Error using hz_cust_account_v2pub.update_cust_account

Hi,

I am getting the following errors,

Others error in parameter validation user-defined exception.There was a validation error - User-Defined Exception

when I call the  hz_cust_account_v2pub.update_cust_account (

=> l_init_msg_list,

=> l_cust_acct_rec,

=> l_object_version_number,

=> l_return_status,

=> l_msg_count,

=> l_msg_data);

I have passed the mandatory fields cust_account_id, object_version_number and trying to update one of the attribute columns with constant value.

Can anyone come across this issue?

Any help really appreciated.

Thanks,

Mvelling.