# flow builder

- [Flow builder overview](/help-center/flow-builder/flow-builder-overview.md)
- [Basic Actions](/help-center/flow-builder/steps.md): Below is a list of basic actions, and you can click on each one to learn more.
- [Add & Remove Tag](/help-center/flow-builder/steps/add-and-remove-tag.md)
- [Subscribe and Unsubscribe to Bot](/help-center/flow-builder/steps/subscribe-and-unsubscribe-to-bot.md): Users can subscribe to or unsubscribe from the bot via the Flow Builder or Live Chat. You can also set triggers for both actions.
- [Set Email Opt-in & Opt-Out](/help-center/flow-builder/steps/set-email-opt-in-and-opt-out.md)
- [Set SMS Opt-in & Opt-Out](/help-center/flow-builder/steps/set-sms-opt-in-and-opt-out.md)
- [Steps](/help-center/flow-builder/steps/steps.md)
- [Question step](/help-center/flow-builder/steps/question-step.md)
- [Variable Operation](/help-center/flow-builder/steps/variable-operation.md)
- [JSON Operation](/help-center/flow-builder/steps/json-operation.md)
- [Send Notification](/help-center/flow-builder/steps/send-notification.md)
- [Condition Step](/help-center/flow-builder/steps/condition-step.md)
- [Split Step](/help-center/flow-builder/steps/split-step.md)
- [Go To Step](/help-center/flow-builder/steps/go-to-step.md)
- [Mark Conversation Open/Pending/Spam/Done/Invalid](/help-center/flow-builder/steps/mark-conversation-open-pending-spam-done-invalid.md)
- [Add note to teammates](/help-center/flow-builder/steps/add-note-to-teammates.md)
- [Delete Bot User](/help-center/flow-builder/steps/delete-bot-user.md)
- [Assign to agent/agent group](/help-center/flow-builder/steps/assign-to-agent-agent-group.md)
- [Resume Bot Automation](/help-center/flow-builder/steps/resume-bot-automation.md)
- [Talk to human/Pause automation](/help-center/flow-builder/steps/talk-to-human-pause-automation.md)
- [Advanced Actions](/help-center/flow-builder/advanced-actions.md)
- [External Request](/help-center/flow-builder/advanced-actions/external-request.md)
- [Field variable](/help-center/flow-builder/field-variable.md)
- [Sub Flows](/help-center/flow-builder/sub-flows.md)
- [Sub Flow](/help-center/flow-builder/sub-flows/sub-flow.md)
- [Workflow](/help-center/flow-builder/sub-flows/workflow.md)
- [Function Flow](/help-center/flow-builder/sub-flows/function-flow.md)