SAP Knowledge Base Article - Public

3427759 - User Receives a Session Timeout Dump

Symptom

During the usage of the system, it is noticed that in some circumstances a user session timeout dump is raised.

The dump popup shows the following message:

"400 Session timed out - please log in again"

Environment

  • SAP Business ByDesign
  • SAP Cloud for Customer

Cause

There are a couple possible causes for a session timeout in the system:

  1. The user is inactive in the system for 1 hour.
  2. The user is using another browser tab with the same tenant in parallel, and closes it. Since the sessions are shared between the tabs, it causes a logoff.
  3. The user may have been manually logged of by a system administrator through the Key User Settings.
  4. There is a difference in timeout parameters for Single Sign-On token renewal (only applicable when using a SSO setup).

Resolution

Based on the possible causes mentioned, we recommend checking the suggestions below to avoid session timeouts:

  1. Ensure that the user is not inactive in the system for a prolonged period of time.
  2. In case parallel operation is required, it is suggested to use the built-in tabs inside the Business ByDesign system itself.
  3. Check with administrators for the possibility of a manual logoff.
    A manual logoff can be done by an administrator by following the below steps:
    1. Click on the user avatar icon on the top-right of the screen.
    2. Click on Key User Settings.
    3. Click on User Session Settings.
    4. Search for the desired user, and click on the trash bin button.
  4. Check with the Identity Provider administrator responsible for token renewal timeout parameters.

See Also

Keywords

session, business user, logoff, error 500 , KBA , AP-RC-UIF-RT-B , ByD HTML5 Client (not for Cloud for Customer) , AP-RC-UIF-RT , UI Framework Runtime , Problem

Product

SAP Business ByDesign all versions ; SAP Cloud for Customer core applications all versions