LookBack API: How can we tell the first snapshot?

Products

• Rally On-Premise
• Rally SaaS

Issue/Introduction

When examining a snapshot retrieved by Lookback API, how can we tell if it's the first snapshot?

Environment

Release:
Component: ACSAAS

Resolution

The first snapshot will have these characteristics. If any of the snapshot you examine has any of these characteristics then it is the initial snapshot of this artifact:

1. _SnapshotType = "Create"
2. _SnapshotNumber = 0

3. _PreviousValues will have all fields = null.

Additional Information

More on LookBack API, see: https://rally1.rallydev.com/analytics/doc/#/manual