You will be able to filter the orders according to the desired fields.
|Search by status (ie. approved, invoiced)
|Check from creation date (ie 2017-01-01to2017-02-01)
|Check from update date. (ie 2020-01-01to2021-02-01)
|Search orders that contains this sku
|Search by original channel id (ie 1231)
|Search by channel name (ie. Mercadolivre)
|Search by attribute code or attribute value field (exact)
|Search by invoice number
|See if has invoice number
|Search by track code
|Search by shipping company
|Search by your application id
|Show olders that is or not know (ie. ack=1 or ack=0)
|you can search by any other api propriety, like "receiver_name=Anny or status=active"