I have enabled single logout in okta with signoutUrl, spIssuer, SP certificate i,e exported from the spkeystore.

BindingType: HTTP-Redirect

Please find the below LogoutRequest and Response:

*SAML LogoutRequest:

<?xml version="1.0" encoding="UTF-8"?>

<saml2p:LogoutRequest Destination="https://dev-368508.oktapreview.com/app/wittydev368508_samplesamlapplication_1/exkffil8u7n6aI3aF0h7/slo/saml"

           ID="_5yfpkrb3ltfv7gcrjtoovsuiei9gpveo6gpbgjz"

           IssueInstant="2019-01-23T11:20:56.253Z"

           Version="2.0"

           xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol">

 <saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">urn:mace:saml:wavity.org</saml2:Issuer>

</saml2p:LogoutRequest>

-------------------------------------------------------------------------------------------------------------------------------

*SAML LogoutResponse:

<?xml version="1.0" encoding="UTF-8"?>

<saml2p:LogoutResponse xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"

            Destination="https://witty.wavity.net/auth/logout"

            ID="id119722988383056781797678074"

            InResponseTo="_5yfpkrb3ltfv7gcrjtoovsuiei9gpveo6gpbgjz"

            IssueInstant="2019-01-23T11:20:56.957Z"

            Version="2.0">

 <saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"

        Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">http://www.okta.com/exkffil8u7n6aI3aF0h7</saml2:Issuer>

 <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig*">

  <ds:SignedInfo>

   <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n*" />

   <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more*rsa-sha256" />

   <ds:Reference URI="*id119722988383056781797678074">

    <ds:Transforms>

     <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig*enveloped-signature" />

     <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n*" /></ds:Transforms>

    <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc*sha256" />

    <ds:DigestValue>+BepWNepyvp8IKLPQpqUwuJo/CBQDjHqg+JG/+gPv0Q=</ds:DigestValue>

   </ds:Reference>

  </ds:SignedInfo>

  <ds:SignatureValue>

YkqmLSBtG3jAogNR1hQmDXfHmNaVVVi5L8flV0qfTqqWScZZqf5b/m5Pvae0VQ0sqoDpme33z35gZgS/Y8K0NhMCDN+HT1F0Qyd5S4v3/pLO9HaT4sWDxjOIQxbCkTwJzdgAxMyusGGhA+hOnJNX3RtztFfGjxHWW33uKonGw5Wd/YnCn+bXQYBG1kXXH69hLFYDctJnab5L8+f9AX5SREpXhLo+YtBY34WUFihSQQylI48OAZ94Lh4GlmzxbnH1rq9FXmyzPNOdhJ58j2SDkoAzndhlKolQqYKX+QJLlkPgIcG4gbvKuN+9CbUh1PalecO2dhpxM6zFSzlLhQn9lA==

</ds:SignatureValue>

  <ds:KeyInfo>

   <ds:X509Data>

    <ds:X509Certificate>

MIIDpDCCAoygAwIBAgIGAWPtO0ISMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNU2FuIEZyYW5jaXNjbzENMAsGA1UECgwET2t0YTEU MBIGA1UECwwLU1NPUHJvdmlkZXIxEzARBgNVBAMMCmRldi0zNjg1MDgxHDAaBgkqhkiG9w0BCQEW DWluZm9Ab2t0YS5jb20wHhcNMTgwNjExMDUwMzMzWhcNMjgwNjExMDUwNDMzWjCBkjELMAkGA1UE

     BhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xDTALBgNV BAoMBE9rdGExFDASBgNVBAsMC1NTT1Byb3ZpZGVyMRMwEQYDVQQDDApkZXYtMzY4NTA4MRwwGgYJ KoZIhvcNAQkBFg1pbmZvQG9rdGEuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA gIMKZl+/4JmVU/VAS9t9RJbgQIlC2jGE2g6H/8MjELRphB6yyFgOUt4WpfMHdmQs0SOInhXNqTlo

     LEGTYSkCJi8xojYi+5P3oChWCztyn3Zk93VNY23tZtjtaFL9Ix7JAUi0GLYYuxhZv9nghAMq2VWP 9R1mQISetAABfHaIp1xARr/jdJY3+De9qtMEJQAmCWkv8RXEJgdEBsbVU+jBOxP18l5nX17enasB jbfpOicppVLf15KquBrMZz4/j2Veu1bHFLEX4gA7DbYA0czRUSd6OQJzQWc++0bFXKZO1fGzTjoY pZRsIvm916shOlOT/sETcafOiBQYPrYfVnT/eQIDAQABMA0GCSqGSIb3DQEBCwUAA4IBAQBM8W87

     XzPvg600jg3BSGZh9DgVzLLqYWuFNV1TAR6IcqfoKrRGaVbjKqFN8bZ3uExWHBmYR/+up1HibWH2 Mmb2LupBe9mE0oz8m6GJ61qDv4QEFmGyEuxN9fA/UH/yogyK+mjixiDSpyqjd6O0HkAHThy2oRtU U/LrXh6mDn+ONIuv7eH+c1H/TyixXMudlV4szq5krcKcKCe7gFjKPFtZ3iCo0soWrYgSqXqBYN3H VfXZ2YIfS9VYfjrQSxhzKJdzpMu+YobKOTtGNV58cdzqCYEHkNsUDutPnvk6R8rRwdR/HrUbMXSI

     aCMEn51U+pLUD7UCLe4N4iOF+N3Z76O4

</ds:X509Certificate>

   </ds:X509Data>

  </ds:KeyInfo>

 </ds:Signature>

 <saml2p:Status xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol">

  <saml2p:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:AuthnFailed" /></saml2p:Status>

</saml2p:LogoutResponse>

Getting the status in the LogoutResponse from okta as AuthFailed. Can I know the reasons for this status.