Hi Readers, Sorry for the delay on next article in API Series for NAV 2018. I exactly forgot about that I didn't complete this series. Thank you all who requested for this article. Hope this article continues from that. We already have four posts about NAV 2018 API listed below - API Part 1 API Part 2 - Configure API API Part 3 - Consuming API API Part 4 - Develop a Custom API. In this article, we will see how we can add Page External Item Entity in the API Web Service Page. After adding External Item Entity in list we will be able to consume ExtItem API Page.