ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMBaseLayer Class / WebMapLayerID Property
Version

WebMapLayerID Property
Gets or sets an identifier that will be used to identify the layer in a web map. This value is present if the layer originated in a web map and facilitates matching the layer back to its origin when updating the web map.
Syntax
public string WebMapLayerID {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also