ADMINISTRATION 15 October 2025 25 min read

Entra External ID for Power Pages: Administrator Handbook

Complete Administrator Handbook for Entra External ID with Power Pages: Setup, Configuration, Best Practices and Troubleshooting

1. Introduction and Objectives

Objective

This document describes the administrative tasks in managing Entra External ID (formerly Azure AD B2C) for integration with Microsoft Power Pages. It clearly distinguishes between one-time setup tasks and ongoing maintenance work.

Target Audience

IT administrators and identity professionals with basic knowledge of Azure/Entra ID. Technical understanding of OAuth2/OpenID Connect is beneficial but not mandatory.

Initial Setup

1x
Required once

Setup Duration

2-4h
Depending on complexity

Maintenance Effort

~2h
Per month

Monitoring

Daily
5-10 minutes

2. Overview: One-Time vs. Regular Tasks

One-Time Setup Tasks

These tasks are performed once during initial setup:

  • Create Entra External ID Tenant
  • Configure App Registration
  • Set up User Flows (Sign-up/Sign-in)
  • Configure Custom Branding
  • Define MFA Policies
  • Integration with Power Pages
  • Create test users and perform tests

Regular Maintenance Tasks

These tasks occur during ongoing operations:

  • Monitor Sign-in Logs
  • Review failed authentications
  • Deactivate inactive users
  • Rotate Client Secrets (every 6-12 months)
  • Test User Flow updates
  • Monitor capacity and costs
  • Apply security updates

Important

After successful setup, the administrative effort is minimal. Most activities are limited to monitoring and occasional updates. Portal users manage their accounts independently (password reset, profile updates).

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Tino Rabe

Tino Rabe

Microsoft Power Pages MVP

Microsoft MVP for Power Pages. I help mid-sized companies build secure customer portals.

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