Registration & Account Management

I’m trying to log in, but I’m being told my username (email) or password is invalid. What do I do?

Last Updated · August 5, 2022

First, check to make sure the spelling of your email address and/or password is correct. If it is, try resetting your password. If you do not receive your Reset Password assistance email within 5 minutes, it may be because your account is not fully set up.

5-step learning journey

Discover education resources, organised in a 5-step journey, to learn key information about your Dexcom ONE CGM system, from getting started, your first 10 days, to using Dexcom ONE in the long run.

Step 1: The basics of CGM
Step 2: Getting started
Step 3: Your first 10 days
Step 4: Using Dexcom ONE in the long run
Step 5: Understand your Diabetes trends