4-Digit Security Code In CoWIN From Tomorrow To Minimise Error: Centre

The four-digit security code will be printed in the appointment acknowledgement slip and will not be known to the vaccinator.

The CoWIN system is introducing a new feature of four-digit security code from May 8 to minimise data entry errors about vaccination status that would subsequently reduce inconvenience caused to citizens, the health ministry said. It has been noticed in some instances that citizens who had booked their appointment for COVID-19 vaccination through the CoWIN portal but did not actually go for vaccination on the scheduled date have received SMS notification that a vaccine dose has been administered to them, it said. Upon examination, it has been found to occur largely on account of the vaccinator wrongly marking the citizen as vaccinated, an instance of data entry error by the vaccinator, it stated. "In order to minimize such errors and the subsequent inconvenience caused to the citizens, the CoWIN system is introducing a new feature of four-digit security code in the CoWIN application from May 8.