Setup Information Platform: VMWare Fusion runnung Ubuntu 20.04 Gluu Sever: Docker based Additional components installed: Passport and Shibboleth **Our Use Case** We have created a SAML service provider application using Spring Boot and trying to Connect the same to the Gluu Server Shibboleth IdP. 1. User accessing a protected resource 2. User gets redirected to the IdP login page and in this case we have configured it to communicate to Gluu IdP. 3. Upon redirect the Service Provider sends out SAML request with the the required details but, the redirect is failing with security error. ``` Web Login Service - Message Security Error The request cannot be fulfilled because the message received does not meet the security requirements of the login service. ``` We have tried to resolve the issue with the help of the documentation and the support docs. But it is not working. Please let us know if you need any additional information on the same. The Service Provider application we are using have custom domain and TLS supported. Thanks Seyed F