# Components and Features Introduction

- [Trigger](/help-center/journey/components-and-features-introduction/trigger.md): Learn How to Use Triggers to Start a Customer Journey
- [Send Template](/help-center/journey/components-and-features-introduction/send-template.md)
- [Message Status Rule](/help-center/journey/components-and-features-introduction/message-status-rule.md)
- [Add Tag](/help-center/journey/components-and-features-introduction/add-tag.md)
- [Wait](/help-center/journey/components-and-features-introduction/wait.md)