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Extranet Portal Modernization

Extranet Portal Migration & Modernization Step by Step

Modernizing a legacy SharePoint 2010 Extranet portal to SharePoint Online with automated site and external user provisioning, multi-level governance workflows, and scalable Power Platform ALM.

Focus: Extranet portal migration
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Extranet portal migration and modernization using SharePoint Online and Microsoft Power Platform

The Challenge

The organization needed to migrate a legacy SharePoint 2010 Extranet portal migration to SharePoint Online while modernizing site provisioning, external collaboration, and approval-driven governance processes with minimal disruption.

Our Solution

InnovaGrid Tech delivered a Power Platform-centric solution using Power Apps, Power Automate, Azure Functions, and Microsoft 365 services with strong ALM and governance practices.

Power Apps – Site & User Provisioning

  • Built request applications for site provisioning and external user onboarding.
  • Captured structured inputs for site type, access level, and permissions.
  • Delivered intuitive forms for internal and external collaboration requests.

Power Automate – Multi-Level Governance Workflows

  • Implemented multi-stage approval workflows for site creation requests and external user provisioning requests.
  • Automated notifications, approvals, and status tracking.
  • Ensured compliance-driven approval routing across business units.

Automation & Backend Integration

  • Used Azure Functions to trigger automated SharePoint Online site creation.
  • Automated external user guest provisioning in Azure AD.
  • Automated lifecycle actions such as site archival, deactivation, and user cleanup.

ALM & Best Practices

  • Implemented structured Application Lifecycle Management (ALM) across environments.
  • Managed Development, Test, and Production deployment pipelines.
  • Followed reusable component and modular design approaches.
  • Ensured secure integration with Azure AD and Microsoft 365 services.
  • Conducted code reviews, unit testing, and standard governance practices.

Key Results

  • Fully automated the site and external user provisioning lifecycle.
  • Reduced manual effort through Power Automate-driven approvals.
  • Improved security and compliance with governed access control.
  • Enabled faster deployment of collaboration workspaces in SharePoint Online.
  • Established a scalable ALM-driven Power Platform solution.

Measurable Outcomes

ProvisioningFully Automated
ReducedManual Effort
LifecycleEnd-to-End Automation

Case Study FAQs

Project Overview

Client Sector:Enterprise Healthcare
Technologies Deployed:
SharePoint OnlineSharePoint 2010Power AppsPower AutomateAzure FunctionsMicrosoft 365Power PlatformExtranetHealthcarePortal ModernizationWorkflow AutomationALMExternal User Provisioning

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