Test strips are to be used before the expiry date indicated on the vial.
But once the vial has been opened (and the QR code scanned) the test strips must be used within 90 days.
After 90 days it will not be possible to use the expired test strips. An error message in the app will tell you that the test strips have expired and that you need to open and scan a new vial.
A message ErE appears on the blood glucose meter when taking an Offline measurement.
Please open and scan a new vial of test strips.