Open Bounds Breakfast For The Conclusion Of Service Contract 1) (A) For Mass Sending Messages Via Viber (Platform As A Service) Transactional Messages With Reporting, B) Fallback Sms With Reporting, To Meet The Needs Of E-Efka And 2) Of The Needs Of The Directorate Of Medical Assessment Of The Directorate-General For Benefits And Health Of E-Efka (Pps 43/25)