ArcGIS Pro 2.1.0: Remove Subtype failed with error

[AbhijeetKulkarni]

Hi all,

I am using ArcGIS Pro 2.1.0 with utility network data model. I have added couple of subtypes for assembly FC. If I try to delete one Subtype using 'remove subtype' tool, OR with 'create/manage' pane of subtype and save it, it fails with below error.

ERROR 002140: The subtype is required by utility network. Failed to execute (RemoveSubtype).

There are no custom domains assigned to it. Am I missing something to remove/change before removing subtype?

xander_bakker‌ 

[DavidHoy]

The reason I ask for more guidance is that I have been led astray by the Help documentation

Create a water utility network—Get Started | ArcGIS for Water 

in this page it provides the following order of implementation

• Set up an enterprise geodatabase
• Change the spatial reference of the asset package
• Stage the utility network
• Apply the asset package
• Configure your utility network

from the last step - it links to

Tools for configuring a utility network—ArcGIS Pro | ArcGIS Desktop 

this describes using the Utility Network Tools Toolbox and the Database Management Tools Toolbox

- nowhere along this path does it indicate that schema changes should be made in the Asset package prior to step 4.

thus my call for a best practices type paper

[HowardCrothers]

Thank you for the feedback David Hoy‌, we will use it to update the documentation.