Error "413 Unable to serve request because the request payload is too large."Issue While logging in with SSO, some users might face the error: "413 Unable to serve request because the request payload is too large." in the home page.ReleaseIrrespective of the releasesCauseThis is caused due to the Identity Provider's SAML payload being > 2 MB. In general, the service provider sends a SAML Request to the IdP SSO Service using the HTTP-Redirect Binding. Further, the identity provider returns the SAML Response to the SP Assertion Consumer Service using the HTTP-POST Binding.Apache Tomcat by default sets a limit of 2MB on the maximum size of HTTP-POST requests it accepts.The error "413 Unable to serve request because the request payload is too large." indicates that the request entity is larger than the limits defined by the server; the server might close the connection.Hence 2 MB is the limit imposed on this by default.ResolutionPlease verify with the Identity Provider to modify the SAML payload to be less than 2 MB.