private void UpdateCurrentMasterGroupMappings()
        {
            List <MasterGroupMapping> listOfMasterGroupMappings = masterGroupMappingRepo.GetListOfAllMasterGroupMappings();

            listOfMasterGroupMappings
            .Where(x => x.ConnectorID == null)
            .Where(x => x.ProductGroupID != -1)
            .ForEach(masterGroupMapping =>
            {
                masterGroupMapping.ProductGroupID = -1;
                masterGroupMappingRepo.UpdateMasterGroupMapping(masterGroupMapping);
            });
        }