For developers that are familiar with the .Net SDK in ArcGIS Pro that lets you write your own customer Add-Ins this is a good introduction to the new parcel fabric .Net SDK.
This session introduces the Parcel Fabric API which is in pre-release at 2.5. We’ll cover the information model, concepts and editing patterns. Additionally, we’ll highlight COGO-specific patterns such as using ground to grid corrections and converting between different direction formats.