Hi. I'm quite new to this so please bear with me... I'm looking for the best way to retrieve only the new or updated information in saleforce through API calls. In our case we extract some key data to a external application and then work with it. So...what i wanna know is if there is a smart way of retrieving only the new/updated information. I can do queries where i check the timestamp(changedate) on every table...but i was wondering if there is a better way? regards