Document required entry_id

[epenet]

Proposed change

Documentation for https://github.com/home-assistant/core/pull/129319

Type of change

• [ ] Document existing features within Home Assistant
• [x] Document new or changing features which there is an existing pull request elsewhere
• [ ] Spelling or grammatical corrections, or rewording for improved clarity
• [ ] Changes to the backend of this documentation
• [ ] Removed stale or deprecated documentation

Additional information

• This PR fixes or closes issue: fixes #
• Link to relevant existing code or pull request: https://github.com/home-assistant/core/pull/129319

Summary by CodeRabbit

• Documentation
  • Updated guidance on handling reauthentication and reconfiguration flows for custom integrations.
  • Clarified the deprecation of initiating reauth or reconfigure flows without a configuration entry link starting December 2025.
  • Provided examples of correct implementation for the reauthentication process and error handling for invalid credentials.
  • Noted that reconfigure flows are initiated exclusively by the frontend, with no required changes for custom integrations.

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📥 Commits

Reviewing files that changed from the base of the PR and between c3aa399bd8d0546b9045b2f2d27cfa9adb43b456 and 000678903197eb96d84e86d8eab5adf0d3a1c25e.

📝 Walkthrough

📝 Walkthrough

## Walkthrough The changes outlined in the document focus on the handling of reauthentication and reconfiguration flows for custom integrations. Starting December 2025, initiating these flows without a configuration entry link will be deprecated. Custom integrations are directed to use the `entry.async_start_reauth(hass)` method for proper reauth flow initiation. Additionally, the document introduces the `ConfigEntryAuthFailed` exception for invalid credentials and clarifies that the reconfigure flow is initiated solely by the frontend, requiring no changes from custom integrations. ## Changes | File Path | Change Summary | |---------------------------------------------------|---------------------------------------------------------------------------------------------------------| | blog/2024-11-04-reauth-reconfigure-entry-id.md | - Deprecated initiating reauth/reconfigure flows without a configuration entry link. | | | - Introduced `entry.async_start_reauth(hass)` for correct reauth flow initiation. | | | - Updated `async_press` method to handle `DevicePasswordProtected` exception correctly. | | | - Added `ConfigEntryAuthFailed` exception for invalid credentials during initialization. | | | - Clarified that reconfigure flow is initiated by the frontend only, with no changes needed for integrations. | ## Sequence Diagram(s) ```mermaid sequenceDiagram participant CustomIntegration participant Hass participant Frontend Frontend->>CustomIntegration: Trigger reconfigure CustomIntegration->>Frontend: No action required Frontend->>CustomIntegration: Trigger reauth CustomIntegration->>Hass: entry.async_start_reauth(hass) Hass->>CustomIntegration: Reauth flow initiated CustomIntegration->>Hass: Validate credentials alt Invalid credentials CustomIntegration->>Hass: Raise ConfigEntryAuthFailed else Valid credentials CustomIntegration->>Hass: Proceed with reauth end ```

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