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Enterprise Healthcare
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.

Sector / Focus: Extranet portal migrationSharePoint OnlineSharePoint 2010Power AppsPower AutomateAzure Functions
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

What was the main challenge in the Extranet portal modernization project?

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

Which technologies were used for the Extranet portal modernization?

The solution used Power Apps, Power Automate, Azure Functions, SharePoint Online, Azure AD, and Microsoft 365 services.

How was site provisioning automated?

Power Apps captured structured site provisioning requests, while Power Automate and Azure Functions automated SharePoint Online site creation and related lifecycle actions.

How was external user provisioning automated?

Azure Functions were used to automate external guest user provisioning in Azure AD, while Power Automate managed approval workflows and notifications.

How did the solution improve governance and security?

The solution introduced multi-level approval workflows, compliance-driven routing, governed access control, secure Azure AD and Microsoft 365 integration, and structured ALM across Development, Test, and Production environments.

Project Specs
Client Sector:Enterprise Healthcare
Primary Focus:Extranet portal migration
Technologies & Tools:
SharePoint OnlineSharePoint 2010Power AppsPower AutomateAzure FunctionsMicrosoft 365Power PlatformExtranetHealthcarePortal ModernizationWorkflow AutomationALMExternal User Provisioning
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