---
sourceDocument: Australia ServiceNow AI Platform Capabilities
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/de-DE/servicenow-platform

 Release :

    - australia

ft:locale :

    - de-DE

ft:publication_title :

    - Australia ServiceNow AI Platform Capabilities

ft:clusterId :

    - platcap

bundleId :

    - platcap

workflow :

    - Platform


---

# Compare two versions of an application service in classic Service Mapping

# Compare two versions of an application service in classic
Service Mapping {#ariaid-title1}

* Freigeben Version: Australia
* 
* Aktualisiert 12. März 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 3 Minuten Lesedauer

You can see a summary of application service changes at a glance by comparing two
versions of an application service. This feature is useful for checking the application
service status before and after a certain change or problem.

## Vorbereitungen

Role required: sn_cmdb_admin, admin, app_service_admin, app_service_user, service_mapping_admin, or service_mapping_user

## Warum und wann dieser Vorgang ausgeführt wird

Specify two points in time for which to compare the two versions of an application
service. You can use the change indicators on the timeline to specify one point in
time that is before and another that is after a change for which to see the details.
For example, if you know that the application service started to fail at a certain
time, you can compare two versions of the application service, one before and one
after the problem started. This comparison lets you see the summary of changes that
possibly led to the problems.

Service Mapping, if deployed, tracks and shows all changes to a CI
including configuration files associated with a CI. When you compare two versions of
an application service, you can see changes made to configuration files as changes
to CIs. You can also compare two versions of a configuration file to see the actual
changes in the files, during the time range specified for the comparison.

## Prozedur

1. Open the service instance map.
   1. Navigate to AllCSDMManage Technology Management ServicesService Instance. {#t_CompareBS__NavigateCSDMManageTechServiceAppService}
   2. Select the needed service instance.
   3. On the service instance page, select View Map.
   {#t_CompareBS__substeps_xxr_jpz_dmb} {#t_CompareBS__Cmd_NavigateToAppServicesSM}
2. If needed, click Edit to ensure that the map is in Edit mode.  
   If Service Mapping is deployed, then in Edit mode, the
   Discovery Messages section appears below the map.
3. On the history timeline, set the time range of changes that you want to view.

   | Option | Action |
   | To set the time range of the history timeline | Click the hour, day, week, or month icons. |
   | To increase or decrease the time range | Click the zoom in and zoom out icons. |
   | To change the upper limit on your history range | Click the history scale. ![Click the history scale to mark the time which serves as the upper limit.]() The time that serves as the upper limit appears above the history timeline. Hinweis: You cannot set the lower limit on your history range to a time before this service instance was created. This time is marked with the IT Service Created event on the history timeline. <br /> |
   |-|-|

   {#t_CompareBS__choicetable_dnx_mtk_51b}  
   The map shows the history view of the service instance for the time you selected.  
   Hinweis:  
   The Change tab shows all change records, even the ones which are filtered out of the history view.
4. Click the Compare icon.  

   <br />

5. Set Compare point 1 and Compare point 2 as the two points in time for the comparison.  
   You can drag the pointers on the history scale to set corresponding time
   points.  

   <br />

   If the history scale does not include the time set for comparison, then its
   corresponding pointer appears next to the compare point in yellow:  

   <br />

   Hinweis:  
   If there are no changes to the service during the time interval specified by Compare point 1 and Compare point 2, then no change details are displayed.
6. Click Compare.  
   The comparison view opens in a separate tab.
7. Select a marked CI to see the relevant change record on the Changes tab.  

   <br />

8. **Wahlweise:** If Service Mapping is deployed, you can compare two versions of a configuration file that appears on the map as Updated:
   1. Select the CI that is associated with the updated configuration file.
   2. In the Properties pane, click the link to the updated file.  

      <br />

      The Tracked Configuration Files Version Compare tab opens showing two versions of the
      configuration file side by side.
   3. Review actual changes.  
      Highlight colors indicate the type of change:
      * Purple --- Updated line
      * Pink --- New line
      * Gray --- Deleted line
      {#t_CompareBS__ul_jxv_bgv_1y}
   4. Navigate between the changes using the Next difference icon and the Previous difference icon .
   5. Close the Tracked Configuration Files Version Compare tab when finished.
   {#t_CompareBS__substeps_tkv_n4x_ny}
9. Close the comparison view when finished.
**Zugehörige Tasks**   

* [View the change history of application services in classic Service Mapping](https://servicenow-prod.fluidtopics.net/8bYH5tHXmC3NmMO9JFS2Sw "You can view the changes made to an application service as a whole and to the individual configuration items (CIs) comprising the service. Change history is useful for maintenance, planning, or troubleshooting procedures.")  
**Zugehörige Informationen**   

* [Compare versions of CI configuration files](https://www.servicenow.com/docs/access?context=compare-configuration-files&version=australia&pubname=australia-it-operations-management&ft:locale=en-US)