Sharepoint Workflow Access Token Error

Question

Whenever run a workflow on the SharePoint site it gets stuck on "Started" and throws this error when inspected in the workflow view:
Retrying last request. Next attempt scheduled after 07/01/2015 10:58. Details of last request: HTTP 
to https://***.sharepoint.emea.microsoftonline.com/support/_api/web/lists(guid'91616358-3515-49a4-8652-08e56a608d7e') Correlation Id: 
Instance Id: dba845fc-941c-499f-9722-0929d85899ec
System.Net.WebException: The request was aborted: The request was canceled. ---> System.InvalidOperationException: Failed to fetch an access token from the token service. The token service returned an error type of 'invalid_request' with the following
description: ACS50000: There was an error issuing a token. ACS50001: Relying party with identifier 
'00000003-0000-0ff1-ce00-000000000000/***.[email protected]f5cb8a2' was not found.
Trace ID: e000a6d4-06d3-499b-95a6-a761150135cf
Correlation ID: c7661e3d-2465-2ecb-9935-b7ba3142478d
Timestamp: 2015-01-07 09:50:09Z ---> System.Net.WebException: The remote server returned an error: (400) Bad Request.
   at System.Net.HttpWebRequest.GetResponse()
   at Microsoft.Activities.Hosting.Security.OAuthS2SSecurityTokenServiceCredential.FetchAccessToken(Uri stsUri, String targetServiceAudience, String authenticatorToken, HttpWebRequest request, TimeSpan timeout, EventTraceActivity
eventTraceActivity, TimeSpan& expirationDuration)
   --- End of inner exception stack trace ---
   at Microsoft.Activities.Hosting.Security.OAuthS2SSecurityTokenServiceCredential.FetchAccessToken(Uri stsUri, String targetServiceAudience, String authenticatorToken, HttpWebRequest request, TimeSpan timeout, EventTraceActivity
eventTraceActivity, TimeSpan& expirationDuration)
   at Microsoft.Activities.Hosting.Security.OAuthS2SSecurityTokenServiceCredential.GetAccessTokenFromTokenService(OAuthS2SPrincipal client, OAuthS2SPrincipal targetServiceAudience, HttpWebRequest originalRequest, EventTraceActivity
eventTraceActivity, TimeSpan& expirationDuration)
   at Microsoft.Activities.Hosting.Security.OAuthS2SSecurityTokenServiceCredential.GetAuthorization(OAuthS2SAuthenticationChallenge[] bearerChallenges, HttpWebRequest request, EventTraceActivity eventTraceActivity)
   at Microsoft.Activities.Hosting.Security.OAuthS2SAuthenticationModule.AuthenticateInternal(String challenge, WebRequest request, OAuthS2SCredential credential, EventTraceActivity eventTraceActivity)
   at Microsoft.Activities.Hosting.Security.OAuthS2SAuthenticationModule.Authenticate(String challenge, WebRequest request, ICredentials credentials)
   at System.Net.AuthenticationManager.Authenticate(String challenge, WebRequest request, ICredentials credentials)
   at System.Net.AuthenticationState.AttemptAuthenticate(HttpWebRequest httpWebRequest, ICredentials authInfo)
   at System.Net.HttpWebRequest.CheckResubmitForAuth()
   at System.Net.HttpWebRequest.CheckResubmit(Exception& e, Boolean& disableUpload)
   at System.Net.HttpWebRequest.DoSubmitRequestProcessing(Exception& exception)
   at System.Net.HttpWebRequest.ProcessResponse()
   at System.Net.HttpWebRequest.SetResponse(CoreResponseData coreResponseData)
   --- End of inner exception stack trace ---
   at Microsoft.Workflow.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.Activities.Hosting.HostedHttpExtension.HttpRequestWorkItem.HttpRequestWorkItemAsyncResult.End(IAsyncResult result, Int32& responseCode)
   at Microsoft.Activities.Hosting.HostedHttpExtension.HttpRequestWorkItem.OnEndComplete(ScheduledWorkItemContext context, IAsyncResult result)
This only occurs on the workflows that have been designer in SharePoint Designer 2013, when the using the template ones (for example the three-state) they run fine. Have searched the internet to no avail on the error but believe it is something to do with
the server settings and permissions. Thanks in advance

Answer 1

Hi,
According to your post, my understanding is that Sharepoint Workflow get the Access Token Error.
I reoconmend that you can properly configure the HTTPS endpoint and then re-register the workflow farm with SharePoint.
The snippet below assumes that you have exported the SSL certificate from the workflow manager IIS web site to c:\wfm.cer.
$cert = Get-PfxCertificate "c:\wfm.cer"
New-SPTrustedRootAuthority -Name "Workflow Manager Farm" -Certificate $cert
Register-SPWorkflowService -SPSite "http://dev.sharepoint.com" -WorkflowHostUri "https://devmachine
In addition, it may caused by
a mismatch between SharePoint and Workflows. You can install a new version workflow manger and sharepoint designer to check whether it works.
Here are some similar threads for your reference:
http://sharepoint.stackexchange.com/questions/71773/sharepoint-2013-workflow-cant-get-them-to-work-again
http://community.office365.com/en-us/f/154/t/276478.aspx?pi14176=2
Best Regards,
Linda Li
Linda Li
TechNet Community Support