499 Error occurred while processing request

Last Published: January 17, 2023

Error Message

When attempting to access a Web Feature Service (WFS) or a Web Map Service (WMS) published to a federated portal, an error message is returned.

499: Error occurred while processing request.
Image of Error: 499 Error occurred while processing request.

The security and sharing settings of Open Geospatial Consortium (OGC) services in ArcGIS Enterprise are managed by the sharing status of the primary service on which a capability was enabled – i.e., the Map Service that is published with WMS enabled as a capability. For example, when a map service named CityParcels is published with a WMS capability enabled, and the CityParcels item in ArcGIS Enterprise is shared to the Owner only, another user in ArcGIS Enterprise cannot access the WMS endpoint, just as they cannot access the MapServer endpoint.  

To resolve this error in ArcGIS Enterprise, the Owner can Share the OGC item and the original Item (for example, Map Service) to Everyone.

To resolve this error in a standalone ArcGIS Server, the Owner can do one of the following: 

  • Share the OGC item and the original Item (for example, Map Service) to Everyone in their organization.
  • Inform the client that they need to provide an ArcGIS Server token along with the request to this service endpoint.
  • Secure their ArcGIS Server site using a reverse proxy (such as the ArcGIS Web Adaptor) with a supported authentication scheme.


Secured OGC services return this error unless both the OGC and the corresponding map service are shared with Everyone in the My Content interface, or a valid ArcGIS Enterprise token is provided along with the request to the OGC Service.

Solution or Workaround

To circumvent this issue, consider: 

  • Sharing the service with Everyone in ArcGIS Enterprise 
  • Publishing services to a standalone ArcGIS Server using web-tier authentication 

Article ID:000017300

  • Portal for ArcGIS
  • ArcGIS Server

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