message: bp - transfers - aggregation fields
diff: @@ -200,8 +200,10 @@ export interface BillingTransfer extends CreatedUpdatedProps, BillingTransferAut
  totalAmount: number; // Depends on the fee strategy and thus on the final number of sessions
  transferAmount: number // Amount transferred after applying platform fees
  accountID: string;
  + account?: BillingAccount;
  + businessOwner?: User;
  platformFeeData: BillingPlatformFeeData;
  - transferExternalID?: string; // Transfer sent to the CPO
  + transferExternalID: string; // Transfer sent to the CPO
  }
  // Very important - preserve maximal precision - Decimal type is persisted as an object in the DB
  