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);
});
}