Book Image

Learning ServiceNow. - Second Edition

5 (1)
Book Image

Learning ServiceNow. - Second Edition

5 (1)

Overview of this book

This book is an updated version of Learning ServiceNow, that will cover the new and updated features of the ServiceNow platform. It will show you how to put important ServiceNow features to work in the real world, while introducing key concepts via examples of managing and automating IT services. It'll help you build a solid foundation of knowledge, and will demonstrate how to effectively implement and configure modules within ServiceNow. We'll show you how to configure and administer your instance, and then move on to building strong user interfaces and creating powerful workflows. We also cover other key elements of ServiceNow, such as notifications, security, reporting, and custom development. You will learn how to improve and automate your business' workflow and processes. By the end of this book, you will be able to successfully configure and manage ServiceNow like a pro.
Table of Contents (19 chapters)
Learning ServiceNow Second Edition
Contributors
Preface
Index

Data policies


Data policies, unlike UI policies, execute on the server. They are closely linked to UI policies in terms of behavior and functionality. They can even be used as UI policies on the client, when implemented (however, with limited functionality). Strangely, data policies reside in the sys_data_policy2 table. That 2 is not a typo; it has been that way at least as far back as Eureka.

Data policies allow you to prevent certain changes on the server, by rejecting database updates that don't fit the criteria laid out in the data policy. You can either prevent edits by making a field read only, or you can require a field value by making a field Mandatory, using a data policy rule.

While data policies can be used as UI policies on the form, they lack some functionality provided by UI policies. You cannot, for example, make a field visible or hidden using data policies, because there is no server-side equivalent of a contextually hidden field. There is also no advanced view, no scripted...