In the response of purchase order webhook there are several statuses?

In the response of purchase order webhook there are several statuses?

Hi there,

I am stuck in the situation of which status to be consider. As in the response from the webhook on the event of editing the status of the purchase order have several statuses which one to be consider.
"order_status": "open",
 "status": "open",
"order_status_formatted": "Issued"
In my purchase order the status is showing "Issued". But also i am getting the Open for above 2 statuses.
So, my question is which status is for what?

And more question if you can answer
Zoho books and Zoho Inventory they are independent in there nature can they share webhooks and all?
If i have a script running on some event can it is possible to webhook to get something changed by that script?