How To Fix CMS156 - Cache &1:&2:&3 Is Using an Undefined Host


CMS156 - Overview

  • Message type: E = Error

  • Message class: CMS - KPro: Content Management Service

  • Message number: 156

  • Message text: Cache &1:&2:&3 Is Using an Undefined Host

  • Show details Hide details
  • What causes this issue?

    The Customizing specifies that there is a cache (port &v2&, SSL port:
    &v3&) on the host &v1&. However, the host &v1& is not defined in the
    Customizing.

    System Response

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Procedure for System Administrators

    Define the host &v1& in the Customizing (
    <DS:TRAN.SCMSHO>Define host</>).

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message CMS156 - Cache &1:&2:&3 Is Using an Undefined Host ?
    The SAP error message CMS156, which states "Cache &1:&2:&3 Is Using an Undefined Host," typically occurs in the context of the SAP Cache Management System (CMS). This error indicates that a cache instance is trying to connect to a host that has not been defined or is not recognized by the system.
    
    Cause: Undefined Host Configuration: The host specified in the cache configuration is not defined in the system. This could be due to a typo in the host name or the host not being added to the system. Network Issues: There may be network connectivity issues preventing the system from recognizing the host. Configuration Changes: Recent changes in the system configuration may have removed or altered the host settings. Cache Instance Issues: The cache instance itself may not be properly configured or may have been corrupted.
    Solution: Check Host Configuration: Go to the configuration settings for the cache instance and verify that the host name is correctly

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