If you are the one facing the issue of Gmail notifications not working then your first step should be to clear cache from your Android device. For this, open the settings application and proceed to apps. Here, find the Gmail apps under see all apps and click on storage and cache. After that, clear cache and choose clear storage for a clean start. These are the steps that users need to follow to smoothly troubleshoot the issue of Gmail notifications not working properly. These are the steps that users need to follow to deal with the issue properly.