Wrongly created Reporting Rule Variant has to be deleted.
Reproducing the Issue
Open app Define Reporting Rules and be able to see all the available Reporting Rule Variant if clicking the search button next to the Reporting Rule Variant's box.
Open app Define Reporting Rules then set the corresponding parameters with the Reporting Rule Variant that you want to delete. In order to delete it you have click 'Delete' button in the headline.
reporting rule variant, delete, reporting rules, FINCS_RRULE , KBA , FIN-CS-SAC , Analytics & Planning for S/4HANA for GR via SAC , FIN-CS-EA , Embedded Analytics for S/4Hana Finance for Group Reporting , Problem
SAP S/4HANA Cloud all versions