使用Whatsapp同步Android联系人列表中新插入的联系人以进行链接

In our android contact list, we are presented with different accounts like- whatsApp, gmail, FB etc. to sync our contact list and linking contacts if they are active with any of those accounts. My problem statement is that when i insert a contact in android contact list by writing code then that newly inserted contact should get synced with WhatsApp so that we can be sure whether that contact is available with WhatsApp or not. If contact is available with WhatsApp when sync is run, then it gets linked with that.In our android contact list, we are presented w