3510098 - "500 Internal Server Error" "Dereferencing of the NULL reference" error when using the Group Data Analysis or Group Data Analysis with Reporting Rules apps

When you open/use the Group Data Analysis or the Group Data Analysis with Reporting Rules apps you get an "500 Internal Server Error" "Exception CX_SY_REF_IS_INITIAL occurred because of error: Dereferencing of the NULL reference (Message E WEBDYNPRO_RT 007)" error message in your Fiori Launchpad.

SAP S/4HANA Group Reporting

CX_SY_REF_IS_INITIAL, 500 Internal Server Error, Dereferencing of the NULL reference, WEBDYNPRO_RT 007, Group Reporting, Group Data Analysis, Group Data analysis with Reporting Rules , KBA , FIN-CS-EA , Embedded Analytics for S/4Hana Finance for Group Reporting , BW-RUI-FPM , FPM Analytical GUIBB , Known Error