Have 3 environments (all registered in the license), local, UAT and LIVE.

Installed courier on all 3 all ok and registered the locations. When deploying from Local everything is ok but when attempting to deploy (from the content tree) on UAT or LIVE I receive the following error:

The request failed with HTTP status 404: Not Found.

System.Net.WebException: The request failed with HTTP status 404: Not Found. at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at Umbraco.Courier.RepositoryProviders.WebServiceProvider.RepositoryWebservice.CloseSession(String sessionKey) at Umbraco.Courier.RepositoryProviders.CourierWebserviceRepositoryProvider.CloseSession(String sessionKey) at Umbraco.Courier.RepositoryProviders.CourierWebserviceRepositoryProvider.Dispose(Boolean disposing) at Umbraco.Courier.RepositoryProviders.CourierWebserviceRepositoryProvider.Dispose() at Umbraco.Courier.Core.Common.Extensions.GlobalExtensions.DisposeIfDisposable(Object input) at Umbraco.Courier.Core.Repository.Dispose(Boolean disposing) at Umbraco.Courier.Core.Repository.Dispose() at Umbraco.Courier.UI.Dialogs.CommitItem.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

The URL's for UAT and LIVE are hosted on azure and are valid in the license rules.

*-uat-frontend.azurewebsites.net *-live-frontend.azurewebsites.net

Umbraco version 7.3.8 Courier 3.1.1