2654657 - Application is randomly receiving "400 Bad request" errors from SMP 3.0

Application is randomly receiving "400 Bad request" errors from SMP 3.0 and in the log file the following lines appear:

"error":"unsupported_grant_type"

Authentication failed due to token validation errors.

No AuthenticationEntryPoint was set during login attempt. Falling back to HTTP 401 + WWW-Authenticate

and however the application is correctly sending the retrieved X-SMP-SESSIDSSO cookie in the response it's removed:

X-SMP-SESSIDSSO=REMOVE

SAP Mobile Platform (SMP) 3.0 OData Runtime - Cluster installation

SAP Mobile Platform 3.0

smp, 400, http, code, error, remove, cookie, session id, sessionid , KBA , MOB-ONP-ODP , SAP Mobile On Premise Proxy Services , Problem

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