Fix: Improve email provider CLIENT_CREDENTIAL authentication documentation (Product IS issue #25156)

[wso2-engineering-bot]

This PR was automatically generated by Claude AI.

• Issue: Client credential based auth type usage in global email sender configuration has missing info product-is#25156
• Type: Documentation (Bug - inaccuracies and missing information)
• Summary: Fixed incorrect client_id definition, added missing parameter descriptions (client_secret, token_endpoint, scopes), and provided comprehensive configuration examples for both BASIC and CLIENT_CREDENTIAL authentication types.

Changes made:

1. Fixed client_id definition: Corrected the description which incorrectly stated "Provide the password of the SMTP account" to properly describe it as "The application (client) ID obtained from your email service provider"

2. Added missing parameter descriptions:

   • client_secret: Added description for the application secret required for CLIENT_CREDENTIAL authentication
   • token_endpoint: Added description for the OAuth 2.0 token endpoint URL with format example
   • scopes: Added description clarifying that multiple scopes should be space-separated (not comma-separated)

3. Added configuration examples:

   • Example 1: Using BASIC authentication with Gmail
   • Example 2: Using CLIENT_CREDENTIAL authentication with Microsoft 365 Exchange Online
   • Included notes about scope format and tenant ID replacement

Affected versions:

The modified file (en/includes/guides/notification-channels/configure-email-provider.md) is a shared include file that affects all versions of WSO2 Identity Server documentation:

• 5.9.0
• 5.10.0
• 5.11.0
• 6.0.0
• 6.1.0
• 7.0.0
• 7.1.0
• 7.2.0
• next

All versions will automatically receive these improvements as they include this shared file.

Style scope verification:

Microsoft Style Guidelines have been applied to the newly added content (parameter descriptions and configuration examples). Existing content has not been modified for style unless it was part of the fix requirements.

Verification:

• ✅ mkdocs build completed successfully for version 7.2.0 (pre-existing warnings about plugin configurations are unrelated to these changes)
• ✅ All new parameter descriptions follow Microsoft Style Guide
• ✅ Configuration examples use proper formatting and clear explanations
• ✅ Scope separator clarification addresses the issue requirement

Summary by CodeRabbit

• Documentation
  • Enhanced email provider configuration guide with detailed explanations for CLIENT_CREDENTIAL authentication setup.
  • Added practical configuration examples for both BASIC and CLIENT_CREDENTIAL authentication methods.
  • Included clarifying notes on required fields, tenant ID replacement, and proper scope formatting.

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[coderabbitai]

Walkthrough

This pull request expands the email provider configuration documentation by adding detailed explanations for CLIENT_CREDENTIAL authentication, introducing a new "Configuration examples" section with BASIC and CLIENT_CREDENTIAL authentication snippets, and clarifying tenant_id replacement and scope formatting requirements.

Changes

Cohort / File(s)	Summary
Email Provider Configuration Documentation en/includes/guides/notification-channels/configure-email-provider.md	Expanded client_id field description for CLIENT_CREDENTIAL auth; added four new fields (client_secret, token_endpoint, scopes); introduced "Configuration examples" section with BASIC and CLIENT_CREDENTIAL authentication examples (toml snippets); added clarifying note on tenant_id replacement and multi-scope formatting; minor wording adjustment to remove "here" from linked text.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

• Documentation-only change with additive content (examples and field descriptions)
• Single file modification with straightforward additions
• No functional or logic changes to evaluate

Poem

📬 A guide now gleams with examples bright,
Configuration secrets shown in light—
BASIC, CLIENT_CREDENTIAL, plain and clear,
OAuth scopes and tokens, have no fear! 🐰✨

Pre-merge checks and finishing touches

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	The PR description provides comprehensive details including purpose, changes made, affected versions, and verification steps, though it deviates significantly from the repository's required template structure.	Reorganize the description to follow the template format: Purpose section (with issue link), Related PRs, Test environment, and Security checks. The current content is valuable but needs structural alignment with repository standards.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: improving CLIENT_CREDENTIAL authentication documentation for email providers with a reference to the product issue.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fixing-product-is-issue-25156-1765430093

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

en/includes/guides/notification-channels/configure-email-provider.md (1)

88-128: Well-structured configuration examples with clear guidance.

Both examples are properly formatted and helpful. The CLIENT_CREDENTIAL example for Microsoft 365 includes all required fields with realistic placeholder values, and the accompanying note effectively addresses common configuration mistakes (tenant ID replacement, scope formatting). The BASIC authentication example provides useful reference even though it replicates the initial configuration block shown earlier (lines 12-23).

Consider whether the BASIC authentication example should remain or be replaced with a reference link to the earlier configuration section, as both are identical. This could reduce documentation redundancy while preserving the clarity benefit of having examples in a dedicated section. This is optional—keeping both examples emphasizes the two authentication paths clearly.

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 52b6efe and 98f0556.

📒 Files selected for processing (1)

• en/includes/guides/notification-channels/configure-email-provider.md (2 hunks)

🔇 Additional comments (2)

en/includes/guides/notification-channels/configure-email-provider.md (2)

51-65: Excellent parameter documentation for CLIENT_CREDENTIAL authentication.

The new and updated parameter descriptions for client_id, client_secret, token_endpoint, and scopes are clear, technically accurate, and provide appropriate context for Microsoft 365 Exchange Online integration. The descriptions correctly specify OAuth2 concepts and include helpful format examples (e.g., the token endpoint URL with {tenant_id} placeholder).

---

129-131: Good accessibility improvement.

Removing "here" from the link text follows web accessibility best practices—the anchor text now describes the resource destination rather than the action. This is a minor but valuable refinement.