Book Image

ServiceNow: Building Powerful Workflows

By : Tim Woodruff, Martin Wood, Ashish Rudra Srivastava
Book Image

ServiceNow: Building Powerful Workflows

By: Tim Woodruff, Martin Wood, Ashish Rudra Srivastava

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications, giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. This course will show you how to put important ServiceNow features to work in the real world. We will introduce key concepts and examples on managing and automating IT services, and help you build a solid foundation towards this new approach. You will then learn more about the power of tasks, events, and notifications. We’ll then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Further on, you’ll learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. At the end of this course, you will acquire immediately applicable skills to rectify everyday problems encountered on the ServiceNow platform. The course provides you with highly practical content explaining ServiceNow from the following Packt books: 1. Learning ServiceNow 2. ServiceNow Cookbook 3. Mastering ServiceNow, Second Edition
Table of Contents (39 chapters)
Title Page
Credits
Preface
Free Chapter
1
Module 1
36
Bibliography

Cascading with reference fields


Reference fields are pretty special in ServiceNow. They let you link two records, letting you associate things such as which room you just checked in to. It represents a relationship that makes sense for your data.

Note

Almost every reference field uses sys_id values to join records. But you do have the power to specify another field, by populating the Reference key in the advanced settings of the dictionary. This requires careful consideration for it to make sense, though.

Relationships change, though. Wouldn't it be great to create the other side if needed? And clear up broken links when one side goes? At least in ServiceNow, this is possible.

Dynamic creation

What happens if you try to associate with a record that doesn't exist, such as performing a check-in for a guest that has never been to the hotel before? If you type a name into the reference field that doesn't match an existing record, then the red background warns the user that the record won't be saved...