The selected fitting(s) cannot successfully change service or change size. You must disconnect the connections on the fitting(s) and try again.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34)
Syntax
C#
public static FailureDefinitionId FabricationPartCannotChangeServiceSizeWarning { get; }