SharePoint Implementation Services

SharePoint Implementation Services Enterprise Guide (2026)

SharePoint implementation services from EPC Group cover the full lifecycle from initial Microsoft 365 tenant setup through enterprise-wide modern intranet rollout, custom SPFx development, Microsoft Power Platform integration, Microsoft Purview governance, and Microsoft 365 Copilot enablement.

EPC Group has delivered SharePoint implementations since 2003 across SharePoint 2003, 2007, 2010, 2013, 2016, 2019, and SharePoint Online.

TL;DR — SharePoint Implementation Phases

Phase	Duration	Output
1. Discovery and assessment	4-6 weeks	Tenant audit, content inventory, governance baseline
2. Architecture and design	6-12 weeks	ADR, hub-and-spoke topology, Microsoft Purview taxonomy
3. Implementation	12-24 weeks	Modern sites, custom SPFx, Power Platform integration
4. Content migration	4-12 weeks	Wave migration with content cleanup
5. Governance and adoption	8-12 weeks	Champion network, training, Microsoft Copilot enablement
6. Hyper-care and handoff	8-12 weeks	Post-launch support, knowledge transfer

Mid-market: 6-9 months. Enterprise: 9-18 months. Fortune 500: 18-30 months.

Phase 1: Discovery and Assessment

Tenant Audit

• Microsoft 365 license inventory
• Microsoft Entra ID health
• SharePoint Online site collections
• OneDrive for Business utilization
• Microsoft Teams team count and structure
• Microsoft 365 Group sprawl
• Existing SPFx solutions inventory
• InfoPath / SharePoint Designer workflow inventory (deprecated)

Content Inventory

• Site count, size, and last-modified
• Library / list inventory
• Content type taxonomy
• Sensitivity label coverage
• External sharing posture
• Microsoft Purview audit log retention

Stakeholder Interviews

• Executive sponsors
• IT operations
• Information security
• Compliance / legal
• Department leaders
• End users (per persona)

Phase 2: Architecture and Design

Modern SharePoint Architecture

• Hub-and-spoke topology design
• Standard site templates (Communication, Team, Project, Client)
• Microsoft Entra security group naming
• Sensitivity label container labels
• External sharing tier mapping

Microsoft Purview Governance Design

• 5-tier sensitivity label taxonomy
• Auto-labeling rules per industry
• DLP policy library
• Microsoft Purview Audit (Premium) retention
• Microsoft Purview eDiscovery (Premium) configuration

Microsoft 365 Copilot Architecture

• Microsoft Restricted SharePoint Search
• Microsoft Purview AI Hub configuration
• Microsoft Copilot Studio agent inventory
• Microsoft Sentinel custom analytics rules

Microsoft Power Platform Integration

• Power Apps for InfoPath replacement
• Power Automate for SharePoint Designer workflow replacement
• Microsoft Dataverse for advanced data scenarios
• Custom connectors for line-of-business integration

Phase 3: Implementation

Modern Site Provisioning

EPC Group standard site provisioning workflow:

1. User submits request (SharePoint List or Microsoft Forms)
2. Manager approval (Microsoft Entra manager attribute auto-route)
3. Compliance review (sensitive scenarios)
4. Automated provisioning via Microsoft Power Automate → Microsoft Graph API
5. Owner notification with onboarding guide

Custom SPFx Development

Common SPFx web parts:

• Personalized greeting with weather + calendar
• Department news feed (audience-targeted)
• Approval queue (Power Automate-anchored)
• HRIS integration (time-off, pay stub)
• Resource booker (rooms, equipment)
• Recognition / kudos (Microsoft Viva Engage)
• Event calendar
• Onboarding tracker

Built with React + TypeScript following Microsoft's recommended SPFx patterns.

Microsoft Power Platform Build

• Power Apps for forms (replacing InfoPath)
• Power Automate flows for workflows (replacing SharePoint Designer)
• Microsoft Copilot Studio agents grounded on SharePoint content
• AI Builder for embedded AI in SharePoint

Phase 4: Content Migration

Migration Tooling Selection

Source	Tool
SharePoint Server 2013-2019	SharePoint Migration Tool (SPMT)
SharePoint Online (tenant-to-tenant)	Microsoft 365 Migration Manager
Lotus Notes / Domino	Quest On Demand Migration
File shares	SPMT or AvePoint
Third-party intranets (Workplace, Igloo)	Custom + ShareGate

Content Cleanup During Migration

EPC Group standard 60-70% volume reduction:

• Microsoft Purview Data Lifecycle Management scan
• Duplicate detection
• Stale content identification (>5 years inactive)
• Owner outreach for review
• Archive declared records to Microsoft Purview Records Management
• Delete candidates via retention policy

Sensitivity Labeling Backfill

• Microsoft Purview auto-labeling during migration
• 80%+ coverage on regulated content within 90 days
• Container labels at site provisioning time
• Quarterly auto-labeling tuning

Phase 5: Governance and Adoption

SharePoint Governance Framework

EPC Group standard 10-domain framework:

1. Provisioning workflow
2. Naming conventions
3. Permissions architecture (group-based)
4. Sensitivity labels (5-tier)
5. External sharing (tier-based)
6. Lifecycle management (inactive detection)
7. Content quality (auto-classification)
8. Microsoft Copilot oversharing remediation
9. Audit and compliance (Microsoft Purview)
10. Adoption and training

Champion Network

• 1 champion per 50 users (mid-market) or 1 per 100 (Fortune 500)
• Monthly community of practice
• Quarterly champion summit
• Recognition program

Microsoft 365 Copilot Enablement

• Microsoft Restricted SharePoint Search Day 1
• Microsoft Purview AI Hub monitoring
• Persona-based Copilot enablement
• Microsoft Copilot Studio custom agents
• Continuous adoption optimization

Phase 6: Hyper-Care and Handoff

90-Day Hyper-Care

• Daily standup with customer team
• Weekly executive sponsor briefing
• Microsoft Sentinel monitoring
• Microsoft Purview compliance posture review
• Microsoft 365 Copilot adoption metrics

Knowledge Transfer

• Architecture documentation
• Operations runbook
• Microsoft Power Platform component library
• Microsoft Copilot Studio agent documentation
• Microsoft Sentinel detection rule library

Optional: Microsoft SharePoint Managed Services Transition

EPC Group can transition from project to ongoing Microsoft Managed Services for steady-state operations. See Microsoft Managed Analytics Services.

Frequently Asked Questions

How long does SharePoint implementation take?

Mid-market: 6-9 months. Enterprise: 9-18 months. Fortune 500: 18-30 months.

How much does it cost?

EPC Group fixed-fee SharePoint implementation:

• Mid-market: $400K-$800K
• Enterprise: $800K-$2M
• Fortune 500: $2M-$5M

What about Microsoft 365 Copilot?

Modern SharePoint implementation includes Microsoft 365 Copilot governance setup, Microsoft Restricted SharePoint Search, Microsoft Purview AI Hub configuration, and oversharing remediation. Microsoft Copilot Studio custom agents are built post-launch as Phase 6 ongoing optimization.

What if we already have SharePoint?

EPC Group offers SharePoint Modernization (existing SharePoint Online with classic UI) or SharePoint Migration (SharePoint Server 2013/2016/2019). Both follow similar 6-phase framework with adjusted scope.

What about regulated industries?

Healthcare (HIPAA), financial services (FINRA, SEC), government (FedRAMP, CMMC), and pharma (GxP) require enhanced governance. EPC Group's industry-specific SharePoint frameworks handle regulator-aligned compliance posture.

Who delivers EPC Group SharePoint implementations?

EPC Group senior architects with combined SharePoint experience since 2003. Errin O'Connor is a 4-time Microsoft Press author including a SharePoint book. Senior architects bring MS-301, Microsoft Information Protection Specialist, and CIPP credentials.

Next Steps

Schedule a 30-minute SharePoint implementation discovery call at /schedule or call (888) 381-9725. Senior architects (not sales) take discovery calls.

Related reading: SharePoint Consulting Company Enterprise Services, SharePoint Modernization: Classic to Modern Migration Guide, SharePoint Online Migration Guide, SharePoint Governance Best Practices Enterprise Framework, and Copilot for Microsoft 365 Complete Deployment Guide.