A labeled dimension is being deleted, but the corresponding constraint belongs to a group and will not be changed. You can change it in group edit mode later.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static FailureDefinitionId UndeletedConstraintsInGroup { get; }