Hi Varun,
I see that resetting a group by system admin is valid requirement.
I guess there is a table which holds personalize tile/group setting. If you delete it, I expect the group is loaded from system definition and not from personalized one.
When you reset a group, delete method is called then personalise page is loaded with $expand option.
/sap/opu/odata/UI2/PAGE_BUILDER_PERS/Pages('SAP_MM_BCG_Buyer_X1')
Delete
/IWBEP/IF_MGW_CORE_SRV_RUNTIME~DELETE_ENTITY
/IWBEP/IF_MGW_APPL_SRV_RUNTIME~DELETE_ENTITY
/sap/opu/odata/UI2/PAGE_BUILDER_PERS/Pages('SAP_MM_BCG_Buyer_X1')?$expand=Bags/Properties,PageChipInstances/Chip/ChipBags/ChipProperties,PageChipInstances/RemoteCatalog,PageChipInstances/ChipInstanceBags/ChipInstanceProperties
Get
Regards, Masa
SAP Customer Experience Group - CEG