If no builds are triggered automatically when you push code into your repository, you should make sure your webhook is properly set on the git hosting service you use (GitHub, Bitbucket, GitLab, …).
You can find the webhook related setup and troubleshooting guides in the Webhooks section of the DevCenter.
If the webhook is present on the git hosting service, you should check the Troubleshooting section of the Webhooks docs.
You can schedule your builds to run automatically at a specific time of the week so that you can check your logs when it's most convenient for you.
Environment Variables (Env Vars) consist of a key and a value, as well as optional attributes. They can be defined on the level of apps, Workflows or Steps.
Build logs allow users to analyze their builds and find out what went wrong - and what went right! On Bitrise, build logs are easily accessible: they can be viewed...