SAP Knowledge Base Article - Public

2167624 - Mean Value displays as N/A or -1 on the Item Evaluation report


The questionnaire survey per item in an Item Evaluation Report shows mean score = N/A or -1


SuccessFactors Learning Management System (LMS) - All Supported Versions

Reproducing the Issue

  1. Assign item evaluation survey to an item.
  2. Complete the item and evaluation as a user.
  3. Open survey and view the results for the item via Learning > Questionnaire Surveys > Open survey > Item Usage tab.
  4. Note that the Mean score = N/A.


A mean score cannot be calculated when more than one rating scale is used within a survey.

This is expected behavior.


Make the rating scale the same for all questions and mean score will populate.

Note: if you are to edit an existing survey to correct the rating scale and after doing that the mean score is not calculated yet, create a new survey, copying the previous one, but inserting the correct rating scale since the beginning.


not working, report, eval, survey, questionnaire, questionnaire, evaluation, item evaluation by instructor, NA, kal, kac, mean value , KBA , LOD-SF-LMS-REP , Reporting Data , LOD-SF-LMS , Learning Management System , Problem


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