Unable to perform editing/administration workflows when accessing a utility network from an ArcGIS Enterprise 10.6.x portal using ArcGIS Pro 2.4

Description

Certain editing and administration workflows return an error when accessing a utility network from an ArcGIS Enterprise 10.6.x portal using ArcGIS Pro 2.4. A wide variety of symptoms are experienced when working with these ArcGIS Pro and ArcGIS Enterprise versions.

Here are a few examples: 

• Attempting to view the Network Properties results in the following error:

Utility Network unavailable

• Enabling the network topology returns the following error:

Error 001793: Network topology must be enabled.

• Using the Modify Associations pane: associations are not populated.
• Executing Update Subnetwork returns the following error: 

Error 001793: Network topology must be enabled.

Cause

This is an ArcGIS Pro client-side compatibility issue; when accessed from an ArcGIS Enterprise 10.6.x portal, ArcGIS Pro 2.4 clients are not supporting backward compatibility for working with utility networks .

Workaround

This is resolved in the ArcGIS Pro 2.4.2 patch. For more information, see ArcGIS Pro Release notes.

The following workarounds are available:

• Downgrade ArcGIS Pro to the latest 2.3.x release available
• Upgrade ArcGIS Enterprise to 10.7.x or later