Custom code should earn its place

SPFx Development Services

Build secure, maintainable SharePoint and Microsoft 365 experiences with SPFx, React, Microsoft Graph, PnPjs and supported Microsoft APIs.

Start with the requirement. If native Microsoft 365 or Power Platform is enough, SPFx should not be forced. If custom engineering is justified, design it for security, maintainability, and production support.

SPFx development illustration showing code, React components, and Graph integrations

Custom engineering with a support model.

SPFx belongs where native Microsoft 365 or Power Platform cannot meet the requirement cleanly.

SPFxReactTypeScriptPnPjsMicrosoft GraphSharePoint APIs

What happens first

SPFx Technical Consultation

The first conversation clarifies the requirement, existing customization risk, data and API needs, and whether SPFx is actually the right engineering path.

Initial consultation is used to determine whether SPFx is justified and what review, architecture, or delivery engagement should follow.

Best for

  • Custom SharePoint UI or extension requirements that native Microsoft 365 cannot satisfy
  • Existing SPFx, Script Editor, or JavaScript customizations that need review
  • Graph, SharePoint API, or business API integration questions

Who should attend

  • Microsoft 365 Lead
  • SharePoint Owner
  • Solution Architect
  • Technical Lead

What to bring

  • Requirement or current component overview
  • Existing package, repo, or architecture summary where available
  • API, Graph, or permission needs
  • Deployment and support constraints

What you get

  • SPFx fit and architecture direction
  • Permission and integration considerations
  • Maintainability and delivery risks
  • Next-step plan for review, remediation, or build

Decision first

Do You Actually Need SPFx?

SPFx is powerful, but it is not the default answer. A good service engagement should test the requirement against native SharePoint, JSON formatting, Power Platform, and supported Microsoft 365 capabilities before recommending custom code.

1

Business requirement

Start with the outcome, users, data, security, and ownership.

2

Native Microsoft 365?

Use modern SharePoint, lists, libraries, pages, views, navigation, or search when they fit.

3

JSON formatting?

Use supported formatting for presentation-only list or library experiences.

4

Power Platform?

Use Power Apps or Power Automate where the requirement is a form, app, approval, or process.

5

SPFx justified?

Use SPFx when custom SharePoint UI, extensions, or Microsoft 365 integration truly need pro-code engineering.

Commercial capability

What We Build

Custom SharePoint engineering is most valuable when the user experience, data model, integration boundary, and support model are clear.

Custom Web Parts

Role-aware SharePoint components, dashboards, document tools, and guided user experiences.

SPFx Extensions

Application Customizers, Field Customizers, and ListView Command Sets where supported extension points fit.

Microsoft 365 Dashboards

SharePoint experiences that combine list data, files, users, groups, and Microsoft 365 signals.

Document & Library Experiences

Custom actions, metadata-led interfaces, list/library workflows, and document workspace UI.

Search & Navigation Experiences

Targeted experiences when native search or navigation does not satisfy the scenario.

Business System Integrations

Secure SharePoint interfaces connected to approved APIs and enterprise systems.

Architecture

Enterprise SPFx Architecture

The design should separate user experience, service-layer access, permissions, configuration, and deployment. That keeps the component understandable after the first release.

1

Experience layer

React, TypeScript, accessibility, responsive behavior, and Fluent UI where it fits.

2

Data access layer

PnPjs, SharePoint REST, Microsoft Graph, paging, errors, and approved API boundaries.

3

Operations layer

App Catalog deployment, environment configuration, tenant approvals, validation, and support handoff.

Core engineering domains

UI EngineeringSharePoint DataMicrosoft 365Identity & SecurityIntegrationDeployment

Architecture blueprint

Separate UI, services, security, and release.

01

Signed-in user

Microsoft Entra ID context

02

SPFx shell

SharePoint-hosted component

03

React experience

Typed, accessible UI

04

Service layer

Data access and API orchestration

05

Approved resources

SharePoint, Graph, business APIs

Security boundary

Browser SPFx code uses approved delegated access. Secrets and privileged credentials stay behind secured server-side services.

Integration

SharePoint, Graph, and Business APIs

The API choice should follow the resource and permission model. Graph does not replace SharePoint APIs, and PnPjs is not a security boundary. Each integration needs the right responsibility.

SharePoint APIs

Use SharePoint REST or PnPjs for SharePoint-native operations such as lists, libraries, files, metadata, and site data.

Microsoft Graph

Use Graph for Microsoft 365 data where the resource, permission model, and tenant approvals fit the scenario.

External APIs

Connect to business systems through a secure API approach. Protected credentials belong behind a backend or mediation layer, not in browser SPFx code.

Security and permissions

Secure by Architecture

A credible SPFx solution is explicit about identity, least privilege, data access, tenant approvals, and what must never be placed in the browser.

Identity

SPFx runs in the signed-in user context and should align with Microsoft Entra ID and tenant governance.

Permissions

Graph and API access should be planned around least privilege, admin consent, and clear business justification.

Data Handling

Components should validate inputs, avoid over-fetching, handle errors, and respect user authorization.

Application Security

Client secrets, API keys, and sensitive credentials must not be embedded in SPFx browser bundles.

Legacy modernization

Modernize What Still Matters

Legacy SharePoint customizations should be assessed before they are rebuilt. Some can be retired, some can move to native Microsoft 365 or Power Platform, and some justify SPFx.

Script Editor / Custom JavaScript

Assess dependencies, DOM manipulation, hard-coded URLs, API calls, authentication, and whether SPFx is even required.

Existing SPFx Remediation

Review architecture, dependencies, large components, duplicated API logic, Graph permissions, packaging, performance, and maintainability.

Classic to Modern SharePoint

Connect SPFx decisions to broader modernization of pages, navigation, forms, workflows, and information architecture.

If the SPFx question is part of a larger classic SharePoint or migration program, connect the engineering decision to the broader architecture first.

Delivery

From Requirement to Operated Solution

The service path is designed to avoid custom code for its own sake and to leave behind a solution that can be maintained.

Step 1

Discover

Clarify the requirement, audience, data sources, owners, risks, and constraints.

Step 2

Decide

Confirm native Microsoft 365, Power Platform, or SPFx as the right target.

Step 3

Design

Define component architecture, permissions, integration boundaries, deployment, and validation.

Step 4

Build

Implement maintainable React, TypeScript, services, error handling, and configuration.

Step 5

Validate

Test permissions, data, performance, accessibility, browser behavior, and user scenarios.

Step 6

Deploy

Package, version, release through App Catalog, and document operational ownership.

Step 7

Operate

Support upgrades, dependency health, remediation, and lifecycle decisions.

Deployment and ALM

Package, Approve, Validate, Release

SPFx delivery should include package versioning, App Catalog deployment, environment configuration, tenant approvals for API access, validation gates, and support handoff.

Release pipeline

Controlled path to production

  1. 01

    Requirement

  2. 02

    Architecture

  3. 03

    Solution package

  4. 04

    App Catalog

  5. 05

    Tenant approvals

  6. 06

    Validation

  7. 07

    Production release

  8. 08

    Operational support

Versioned package

Controlled solution package and release notes.

Tenant approval

API permissions reviewed before production.

Validation gates

Functional, permission, browser, and data checks.

Support handoff

Owner, configuration, and operating notes documented.

Engagement output

What You Receive

Engineering engagements end with a reviewed solution and documented ownership, not just working code.

Reviewed component architecture

React structure, service boundaries, and state strategy for the requirement.

Web parts and extensions

Implemented components with permission-aware data access.

Graph and PnPjs integration

Least-privilege scopes, consent flow, paging, and error handling.

Packaging and release notes

Versioned solution package, App Catalog deployment, and tenant approvals.

Validation and handoff notes

Tested permissions, browsers, and documented operating ownership.

Production quality

Built for Performance, Accessibility, and Support

A component is not production-ready just because it renders. The code, permissions, deployment model, and support path all matter.

Performance

Design for lean bundles, controlled data calls, paging, batching where suitable, and measured rendering paths.

Accessibility

Use semantic structure, keyboard-friendly controls, visible focus, adequate contrast, and text alternatives for visual diagrams.

Maintainability

Separate React UI from services, configuration, permissions, and integration logic so the solution can be supported.

Upgrade Readiness

Avoid unnecessary dependencies, document versions, and plan package updates instead of treating deployment as the finish line.

Evidence of expertise

Inspect the Technical Thinking

These resources are technical proof points and reference material. They are not customer case studies, testimonials, or claimed client outcomes.

Business use cases

Where SPFx Adds Value

SPFx fits specific scenarios where supported SharePoint customization is justified. It is not necessary for every SharePoint improvement.

Employee Portals

Custom role-based SharePoint experiences when native pages and web parts are not enough.

Business Dashboards

Interfaces combining SharePoint, Microsoft 365, and enterprise data sources.

Document Workspaces

Document-centric actions, metadata, and guided library experiences.

Search Experiences

Custom result experiences where native search does not meet the requirement.

Business Process Interfaces

Custom UI around SharePoint data, workflows, approvals, and operational tasks.

Enterprise Integrations

SharePoint surfaces connected to secure business APIs and Microsoft 365 services.

Qualification

Is This a Good Fit?

This service is for organizations that need an evidence-based architecture decision and, where justified, production-focused SPFx engineering.

You Need Custom SharePoint UI

Native components do not satisfy the user experience or interaction model.

You Have Legacy Customizations

Script Editor, JavaScript, legacy web parts, or existing SPFx needs supported modernization.

You Need Microsoft 365 Integration

The experience requires Graph, SharePoint APIs, users, groups, files, or cross-workload data.

You Need Enterprise API Integration

SharePoint must interact with secured business systems through the right API boundary.

You Need Existing SPFx Remediation

An existing solution has architecture, security, performance, deployment, or maintainability problems.

You Are Migrating Legacy SharePoint

Customizations need decisions before moving or redesigning the target SharePoint environment.

Scope boundaries

What May Need Separate Scope

The discovery conversation defines what is included. These items are scoped separately when they apply to your environment.

Non-SPFx application development

Work outside the SharePoint Framework needs separate scoping.

Large backend or API platform builds

New enterprise APIs behind SPFx components are separate backend scope.

Tenant-wide identity transformation

Entra redesign beyond solution permissions is a separate engagement.

Unrelated Power Platform projects

Apps and flows outside the SPFx solution are scoped separately.

Managed support

Ongoing maintenance continues under a support agreement when one is defined.

FAQ

SPFx Development Questions

When should we use SPFx instead of native SharePoint?

Use SPFx only when native Microsoft 365, list/library formatting, standard pages, or supported configuration cannot satisfy the requirement cleanly.

SPFx or Power Apps - which should we choose?

Power Apps often fits forms and business apps. SPFx fits custom SharePoint UI, extensions, document/library experiences, and pro-code Microsoft 365 integrations. The requirement decides.

Can SPFx connect to Microsoft Graph?

Yes, when the required Graph permissions are available, approved, and scoped to the scenario. Access should follow least privilege.

Can SPFx integrate with our business APIs?

Yes, but sensitive credentials must not live in SPFx browser code. Protected integrations usually need a secure backend or API mediation layer.

Can you modernize Script Editor or custom JavaScript?

Yes, after assessing whether the requirement still matters and whether native SharePoint, JSON formatting, Power Platform, or SPFx is the right target.

Can you review an existing SPFx solution?

Yes. Reviews can cover dependencies, architecture, React structure, Graph permissions, PnPjs or REST issues, App Catalog deployment, performance, and maintainability.

How are SPFx solutions deployed?

SPFx solutions are packaged, versioned, and deployed through an App Catalog with the right tenant or site governance and permission approvals.

How do we start?

Start with a short discovery conversation about the requirement, existing environment, data sources, security needs, and whether SPFx is justified.

Start with the requirement

Need Something SharePoint Cannot Do Natively?

Let us determine whether the requirement needs native Microsoft 365, Power Platform, or custom SPFx engineering.