RETAIN
Already modern, supported, and valuable.
Modern SharePoint + Microsoft 365
SharePoint Modernization Services
Modernize legacy SharePoint sites, customizations, forms, workflows, and business processes for Microsoft 365 using modern SharePoint, SPFx, Power Apps, and Power Automate.
LEGACY SHAREPOINT
Classic SitesInfoPathSharePoint DesignerCustom JavaScriptLegacy Web Parts
MODERN MICROSOFT 365
Modern SharePointSPFxPower AppsPower AutomateMicrosoft Graph
ASSESS
RETAIN
REPLACE
MODERNIZE
REBUILD
RETIRE
Why SharePoint Modernization
Modernization helps reduce technical debt, improve maintainability, and align legacy SharePoint experiences with Microsoft 365 without using fear-based shortcuts.
Legacy SharePoint experiences
Unsupported or aging customizations
Classic pages
Legacy forms
Legacy workflows
Custom JavaScript
Outdated information architecture
Poor mobile experience
Manual business processes
Migration to SharePoint Online
Microsoft 365 adoption
Governance requirements
Business-process modernization
Legacy discovery
Before Modernizing, Understand What Exists.
Modernization decisions should follow inventory, dependency analysis, business value, and technical risk. Do not rebuild legacy technology simply because it exists.
Inventory
Dependency Analysis
Business Value
Technical Risk
Modernization Decision
Sites
Site collections
Classic pages
Publishing sites
Master pages
Page layouts
Script Editor web parts
Content Editor web parts
Custom JavaScript
Custom CSS
Legacy web parts
Farm solutions where applicable
Sandbox solutions where applicable
InfoPath forms
SharePoint Designer workflows
Custom forms
Custom APIs
Third-party solutions
Authentication dependencies
External integrations
SPFx solutions
Power Apps
Power Automate
Business-critical processes
Modernization Decision Framework
REPLACE
A Microsoft 365 capability already solves the requirement.
MODERNIZE
Existing functionality can move to a supported modern architecture.
REBUILD
Business value remains, but the technical implementation needs redesign.
RETIRE
The component is obsolete, unused, duplicated, or no longer provides business value.
The best modernization path depends on business value, technical risk, usage, compliance, maintainability, and target architecture.
Classic to Modern SharePoint
Classic sites, pages, publishing structures, branding, and old web parts need assessment before choosing modern alternatives.
CLASSIC SHAREPOINT
Inventory
Content & Dependency Analysis
Modern Information Architecture
Modern SharePoint
Assess
Classic team sites
Classic pages
Publishing sites
Legacy navigation
Legacy branding
Master pages
Page layouts
Old web parts
Modern alternatives
Modern SharePoint sites
Modern pages
Hub sites
Modern navigation
Modern web parts
SPFx
Microsoft 365 theming where appropriate
Responsive experiences
InfoPath Modernization
Evaluate, redesign, replace, or rebuild forms based on business rules, data, security, integrations, and user experience. Not every InfoPath form should automatically become Power Apps.
INFOPATH
Understand Form + Data + Rules + Workflow
Select Modern Architecture
Power Apps / SharePoint / Dataverse / Other Appropriate Solution
Form complexity
Business rules
Data sources
Attachments
Repeating sections
Approvals
Integrations
Security
Offline requirements
External users
Dataverse requirements
SharePoint Designer Workflow Modernization
Workflow modernization starts with business process discovery. There is no reliable one-to-one automatic conversion for every legacy workflow.
SHAREPOINT DESIGNER WORKFLOW
Business Process Discovery
Trigger + Logic + Approvals + Integrations
Modern Workflow Architecture
Power Automate / Alternative Supported Architecture
Triggers
Conditions
Approvals
Email notifications
SharePoint dependencies
Service accounts
External integrations
Error handling
Long-running processes
Business ownership
Legacy JavaScript to SPFx
Modern Component Architecture
Script Editor and custom JavaScript should be reviewed for dependencies, authentication patterns, hard-coded values, and business value. Some scripts can be retired or replaced with native Microsoft 365 capabilities rather than rebuilt.
Script Editor / Custom JavaScript
Dependency Review
Modern Component Architecture
SPFx + React + TypeScript
Microsoft Graph / REST / PnPjs
Script Editor solutions
DOM manipulation
Custom navigation
Page customization
Custom forms
REST calls
Hard-coded URLs
Tenant-specific configuration
Legacy libraries
Authentication patterns
SPFx Modernization
SPFx can support modern custom web parts and extensions when native Microsoft 365 capabilities do not meet the requirement.
Business Requirement
SPFx Component
SharePoint / Graph / API
Secure Modern Experience
Custom web parts
Application Customizers
ListView Command Sets
React
TypeScript
Fluent UI
PnPjs
SharePoint REST
Microsoft Graph
External APIs
App Catalog
API permissions
Environment-specific configuration
Performance
Accessibility
Deployment
Power Apps
Power Apps may support forms, request apps, employee apps, and mobile scenarios, but it is not appropriate for every application.
Legacy SharePoint forms
Request applications
Employee applications
Data-entry solutions
Approval interfaces
Mobile business apps
SharePoint-integrated applications
Power Apps + SharePoint
Power Apps + Dataverse
Power Apps + Power Automate
Power Apps + Teams
Power Automate
Power Automate can modernize approvals, notifications, document processes, integrations, and scheduled work when the architecture supports ownership, monitoring, and governance.
Business Event
Power Automate
Business Logic
SharePoint / Dataverse / Teams / APIs
Outcome
Approvals
Notifications
Document processes
Employee requests
Business workflows
SharePoint automation
Teams integration
Scheduled processes
Integration workflows
Connections
Service accounts
Connection references
Environment variables
Error handling
Monitoring
Governance
ALM
Information Architecture
Modernization is not only custom code. Site architecture, hubs, navigation, metadata, search, permissions, lifecycle, and governance shape the long-term user experience.
Legacy Structure
Simplify
Organize
Modern Information Architecture
Govern
Site architecture
Hub architecture
Navigation
Content types
Metadata
Libraries
Search
Permissions
Ownership
Lifecycle
External sharing
Governance
Migration + Modernization
STRATEGY A
Modernize Before Migration
Useful when legacy dependencies block migration.
STRATEGY B
Migrate Then Modernize
Useful when supported content can move first and modernization can follow.
STRATEGY C
Modernize During Migration
Useful when migration is part of a broader transformation program.
The correct strategy depends on business risk, technical dependencies, timeline, budget, migration tooling, business criticality. No single approach is universally best.
Assessment
Migration Strategy
Modernization Strategy
Validation
Modern Microsoft 365
Modernization Roadmap
01
Discover
Understand business goals, owners, legacy technology, target outcomes, and constraints.
02
Inventory
List sites, forms, workflows, scripts, custom components, data sources, and integrations.
03
Assess
Review business value, risk, usage, supportability, migration impact, and modernization fit.
04
Prioritize
Sequence work by value, technical risk, business criticality, and migration dependencies.
05
Design
Choose modern SharePoint, SPFx, Power Apps, Power Automate, Graph, Dataverse, or native capabilities.
06
Prototype
Validate approach with representative forms, workflows, pages, components, or processes.
07
Modernize
Implement agreed retain, replace, modernize, rebuild, or retire decisions.
08
Test
Test functionality, permissions, data, integrations, mobile behavior, and operational support.
09
Deploy
Release through controlled change, communication, ownership, and deployment practices.
10
Govern
Document ownership, monitoring, support, environment strategy, and lifecycle management.
Prioritization Matrix
Actual decisions require business and technical assessment, but this pattern helps frame what deserves investment first.
High Value + High Risk
Prioritize modernization
High Value + Low Risk
Retain / optimize
Low Value + High Risk
Consider retirement
Low Value + Low Risk
Defer / simplify
Security & governance
Modernization Should Improve Supportability
Modernization should improve maintainability and governance, not merely replace technology with a new fragile pattern.
Least privilege
Permissions
External sharing
Environment strategy
App ownership
Flow ownership
Service accounts
API permissions
DLP policies where relevant
ALM
Solution lifecycle
Monitoring
Documentation
Supportability
Modernization Validation
Modernization succeeds when the business process works, not simply when the new technology deploys successfully.
OLD BUSINESS PROCESS
↕
NEW BUSINESS PROCESS
Functional requirements
Permissions
Business rules
Approvals
Integrations
Data
Performance
Accessibility
Mobile behavior
Error handling
User acceptance
Operational support
Who This Service Is For
Organizations that still use classic SharePoint
Organizations that are migrating to SharePoint Online
Organizations that use InfoPath
Organizations that use SharePoint Designer workflows
Organizations that depend on Script Editor/custom JavaScript
Organizations that have unsupported legacy customizations
Organizations that need SPFx development
Organizations that want to replace manual business processes
Organizations that need Power Apps or Power Automate modernization
Organizations that need SharePoint architecture modernization
Organizations that inherited legacy SharePoint environments
Organizations that need to reduce technical debt
Modernization assessment
Not Sure What Should Be Migrated, Rebuilt, or Retired?
Start with an assessment that maps the legacy estate to retain, replace, modernize, rebuild, or retire decisions.
Sites
Forms
Workflows
Customizations
Integrations
Business Processes
Modernization Assessment
Retain / Replace / Modernize / Rebuild / Retire
Modernization enquiry
Discuss Your Modernization Project
Share the current environment, modernization needs, rough scale, timeline, and challenges. Do not submit passwords, credentials, or sensitive Microsoft 365 information through this form.
Related SharePoint Modernization Resources
SharePoint Migration ServicesSharePoint Migration Readiness AssessmentSharePoint Server to SharePoint Online MigrationClassic to modern SharePoint migrationClassic experiences modernization roadmapScript Editor to SPFx modernizationSPFx complete guideMicrosoft Graph APISharePoint information architecturePower Automate cloud flowsPower Apps data source choices
Frequently Asked Questions
What is SharePoint modernization?
SharePoint modernization is the process of moving legacy sites, pages, forms, workflows, scripts, customizations, and business processes toward supported Microsoft 365 architectures. It is not just a visual redesign.
What is the difference between SharePoint migration and modernization?
Migration moves or restructures content and platforms. Modernization changes how legacy experiences, customizations, forms, workflows, architecture, and business processes should work in Microsoft 365.
Can classic SharePoint sites be modernized?
Yes, many classic sites and experiences can be modernized, but the approach depends on page types, customizations, web parts, branding, navigation, integrations, and business requirements.
What replaces InfoPath?
InfoPath may be evaluated for Power Apps, SharePoint forms, Dataverse-backed apps, third-party products, or a rebuilt process. The right replacement depends on form complexity, data, rules, security, and workflow needs.
What replaces SharePoint Designer workflows?
SharePoint Designer workflows are often evaluated for Power Automate or another supported workflow architecture, but there is no universal one-to-one automatic conversion.
Can Script Editor JavaScript be replaced with SPFx?
Often, yes. Script Editor and custom JavaScript should be assessed for dependencies, API calls, hard-coded URLs, and business value. Some scripts may be replaced by native Microsoft 365 features or retired.
Should we modernize before or after SharePoint migration?
It depends on risk, dependencies, tooling, timeline, and business criticality. Some blockers should be modernized before migration, while other improvements may follow after content lands in SharePoint Online.
Can existing SharePoint customizations move to SharePoint Online?
Some can move with remediation, some need rebuilding, and others should be replaced or retired. Farm solutions, master pages, scripts, legacy web parts, and integrations require careful assessment.
When should SPFx be used?
SPFx is useful when a supported custom SharePoint or Microsoft Teams experience is needed, especially for web parts, extensions, Graph integrations, and API-backed components.
When should Power Apps be used?
Power Apps may fit forms, request apps, mobile apps, approval interfaces, and data-entry solutions, but it should be chosen based on requirements, data model, licensing, governance, and supportability.
When should Power Automate be used?
Power Automate may fit approvals, notifications, scheduled jobs, SharePoint automation, and integrations, with planning for connections, ownership, monitoring, environment variables, and ALM.
Can legacy SharePoint applications be rebuilt?
Yes, if business value remains. Rebuild decisions should be based on requirements, risk, usage, data, integrations, maintainability, and target architecture.
How do you decide what to retain, replace, rebuild, or retire?
Use business value, technical risk, usage, supportability, cost, migration impact, and strategic fit. Do not rebuild legacy technology simply because it exists.
How long does SharePoint modernization take?
Timeline depends on the number of sites, forms, workflows, scripts, integrations, stakeholder decisions, architecture complexity, testing, and deployment approach.