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Author's profile photo Tobias Berger

SAP TM Gantt chart – Common issues

In the last weeks I had several tickets on my desk regarding issues like “Gantt chart does only show a grey area” or “Gantt chart is not responding anymore after drag&drop”. This post should list some common sources for such errors and for sure how to fix them.

Checking the console

If you have any issues with the Gantt chart behavior it is a good idea to check the browser console for issues. For opening the browser console you need to open the transportation cockpit application in any browser (instead of using NWBC Client) and press F12 for opening the developer tools. On the console tab you will find a lot of information listed. In case of a java script error the error message will shown up here.


Common issues

Services activated

If the Gantt chart just shows a grey area please make sure that all of the services the Gantt chart needs are activated (please check out SAP TM Gantt chart – How to set up).

Unified rendering issues

If the Gantt chart does only show a grey area but the services are activated, this could be released to issues with unified rendering. Please open the transportation cockpit again with a page layout showing geo-map or 3D load-plan visualization. If these components are also just showing a grey area please follow the instruction of SAP Note 2154957 and install the mentioned SAP Notes at least up to 2282014.

Library mismatch
Please be aware that the TM Gantt chart consists of two components which needs to be on the same version. Both components are delivered with separate SAP Notes. For this reason you ever find two SAP Notes like “Gantt Chart: Collective Note for the Gantt Chart Library (10)” and “Gantt Chart: Collective Note for TM Gantt Chart (10)” showing the same number.
Please make sure that both libraries are on the same version as different versions can lead to several effects from button does not work to Gantt chart does not show up at all.

9.3 related cache buster issue
You are running TM 9.3 on an SP below SP03. In the java script console some issue regarding /sap/public/bc/ui5_ui5/1/resources/~<timestamp> ~/sapuicore.js occur (<timestamp> is showing some timestamp like ‘20160317120000’>. Please implement SAP Note 2235879 for this issue.

9.3 ‘sap.ui.ux3.library-preload’: NOT FOUND
You are running TM 9.3. In the Java script console you get an issue telling “’sap.ui.ux3.library-preload’: NOT FOUND”. Please implement SAP Notes 2258909 and 2258910.

9.3 Handling resources

You are running TM 9.3 on an SP below SP04 and use the default SAP Gantt chart layout SAP_HRES. The Gantt chart does not show up at all. Please implement SAP Note 2288503.

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      Author's profile photo Hariharan Subramanian
      Hariharan Subramanian

      This blog helped me resolve the Gantt chart issue for TM 9.3 due to unified rendering. Thanks for the help!

      Will you be able to provide any additional information for improving the Gantt chart performance? The Gantt Chart although is working is too slow...



      Author's profile photo Tobias Berger
      Tobias Berger
      Blog Post Author

      Hi Hari,

      I would love to have an easy answer how to improve the Gantt chart performance. Currently I can only give you the general hint that you should try to select the data you need but not more (e.g. check whether your planning horizon could be smaller).

      Best regards,

      Author's profile photo Bryant Xie
      Bryant Xie

      Hi Tobias,


      Thanks for sharing. I got an issue recently. You may know when refresh the Gantt Chart, the selection row will be deselected. Do you know how to keep the selection in Gantt Chart?





      Author's profile photo Tobias Berger
      Tobias Berger
      Blog Post Author

      Hi Bryant,

      Sadly that's currently on purpose triggered from the control itself as we were not able to ensure that the same lines are selected before the new data are pushed and afterwards. As usual I cannot promise anything and the following sentence might be subject of change but we plan to change this with the next upcoming release.

      Sorry that I cannot give you better news so far.




      Author's profile photo kumar k
      kumar k

      Hi Tobias,

      Nice blog. thank you.

      We are facing one issue in Gantt chart enhancement.

      We have enhanced Gantt chart with Appointment dates from the FO stages and these appointment dates  start appearing the Gantt chart UI as well.

      Now the issue is when Appointment dates are empty , in this case the date is showing on the UI like 01.01.1970. We are not able to find from these dates are coming and why these dates are populating if appointments dates are empty. I have debugged the class /SCMTMS/CL_UI_GNT_MAP_BO_DATA , to find out where this date ( 01.01.1970 ) is being filled, but no idea. it seems after converting it into JSON format the date( 01.01.1970 ) is being filled

      please suggest about the date 01.01.1970 from where it is coming and why sap populating if there is no date on the Gantt chart ui.


      Thanks & Regards,


      Author's profile photo Tobias Berger
      Tobias Berger
      Blog Post Author