!!! Overview The prompt parameter in [OpenID Connect] [Authentication Request] is an __OPTIONAL__ Space-delimited, case-sensitive list of [ASCII] string values that specifies whether the [Authorization Server] prompts the [Resource Owner] for re-authentication and consent. The defined values are: * none - The [Authorization Server] __MUST NOT__ display any [authentication] or [consent] user interface pages. An [OAuth Error] is returned if an [Resource Owner] ([End-User]) is not already [authenticated] or the [OAuth Client] does not have pre-configured [consent] for the requested [Claims] or does not fulfill other conditions for processing the [Authorization Request]. The [OAuth Error] will typically be [login_required], [interaction_required]. This can be used as a method to check for existing [authentication] and/or [consent]. * login - The [Authorization Server] __SHOULD__ prompt the [Resource Owner] for re-[authentication]. If it cannot reauthenticate the End-User, it [MUST] return an [OAuth Error], typically [login_required]. * consent -The [Authorization Server] __SHOULD__ prompt the End-User for [consent] before returning information to the Client. If it cannot obtain [consent], it __MUST return an error__, typically [consent_required]. * [select_account] - The [Authorization Server] __SHOULD__ prompt the End-User to select a user account. This enables an End-User who has multiple accounts at the [Authorization Server] to select amongst the multiple accounts that they might have current sessions for. If it cannot obtain an account selection choice made by the End-User, it [MUST] return an [OAuth Error], typically [account_selection_required]. The [Account Chooser] is the common interface. * The prompt parameter can be used by the Client to make sure that the End-User is still present for the current session or to bring attention to the request. If this parameter contains none with any other value, an error is returned. !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }]