Building Custom Apps For Business Using Microsoft PowerApps

Building Custom Business Apps with Microsoft Power Apps

Why Organizations Build Custom Apps with Power Apps

Off-the-shelf software covers common business processes. It rarely covers the specific workflows that make your organization run differently from competitors. Power Apps closes that gap without custom development teams or months-long projects.

Common business problems Power Apps solves:

• Manual approval processes running through email chains
• Field teams entering data on paper or in disconnected spreadsheets
• IT helpdesk forms built in SharePoint lists but lacking workflow logic
• Customer-facing portals that require vendor quotes or partner submissions
• Safety inspection checklists with photo capture and GPS location
• Asset management tracking with barcode or QR code scanning

Three Types of Power Apps

Canvas Apps

Canvas apps give you a blank canvas. You design the screen layout, connect to any data source, and control every visual element. Canvas apps work on mobile devices, tablets, and desktops.

Best for: Flexible, task-specific apps where the UI matters — field inspection forms, approval workflows, inventory tracking, employee onboarding checklists.

• Connects to 900+ data sources (SharePoint, Dataverse, SQL, Excel, Salesforce, SAP)
• Offline capability for field teams without reliable connectivity
• Camera integration for photo capture and barcode/QR scanning
• GPS location capture for field service and asset management
• No code required for most scenarios; Power Fx formulas for logic

Model-Driven Apps

Model-Driven apps build the UI automatically from your Dataverse data model. You define the data structure — entities, relationships, and business rules — and Power Apps generates the interface. This approach works best when the data model is complex and the UI should adapt to the data.

Best for: CRM-style applications, case management, project tracking, and any process where data relationships drive the workflow.

• Built on Microsoft Dataverse — same platform as Dynamics 365
• Automatic views, forms, dashboards, and navigation from data model
• Business process flows guide users through multi-stage workflows
• Role-based security at the field, record, and table level
• Extends Dynamics 365 — add custom entities to existing CRM or ERP data

Power Pages

Power Pages (formerly Power Apps Portals) creates external-facing websites connected to your Dataverse data. External users — customers, partners, vendors — can submit forms, view records, and interact with your data without needing a Microsoft 365 license.

Best for: Customer self-service portals, partner onboarding, vendor quote submission, grant applications, and any external-facing process that currently runs through email or manual forms.

• External authentication via Azure AD B2C, Google, LinkedIn, or local accounts
• Responsive design — works on mobile, tablet, and desktop browsers
• Role-based access control for external users
• Connects to Dataverse — external submissions go directly into your data model
• Can embed Power BI reports for external data sharing

What Power Apps Connects To

Power Apps connects to 900+ data sources through Power Platform connectors. Common enterprise connections:

• Microsoft ecosystem: SharePoint, Dataverse, SQL Server, Azure SQL, Excel, Teams, Dynamics 365, OneDrive
• CRM/ERP: Salesforce, SAP, ServiceNow, Workday
• Databases: Oracle, MySQL, PostgreSQL, Cosmos DB
• APIs: Any REST API with custom connectors, including internal line-of-business systems
• Productivity tools: Outlook, Google Sheets, Dropbox, Box, DocuSign

Power Apps vs Custom Development

EPC Group Power Apps Services

EPC Group designs and builds custom Power Apps for enterprise organizations across healthcare, financial services, government, and manufacturing. Our practice includes:

• Requirements analysis and app architecture design before any build begins
• Canvas app development for field and task-specific workflows
• Model-Driven app development with Dataverse data modeling
• Power Pages external portal development with Azure AD B2C authentication
• Power Automate workflow integration for approvals and notifications
• AI Builder integration for document processing and prediction models within apps
• Power Platform governance — DLP policies, app catalog, environment strategy

Frequently Asked Questions

Do I need coding skills to use Power Apps?

No coding is required for most Canvas and Model-Driven apps. Power Fx formulas (similar to Excel functions) handle most logic. Advanced scenarios — custom connectors, complex data transformations, PCF controls — benefit from a developer but are not required for standard business apps.

What is the difference between Canvas and Model-Driven apps?

Canvas apps give you full control over screen layout and can connect to any data source. Model-Driven apps auto-generate the interface from your Dataverse data model — less design flexibility, but faster to build for data-complex processes. Use Canvas for task-specific forms; use Model-Driven for CRM or case management workflows.

Can Power Apps connect to our existing ERP or CRM?

Yes. Power Apps connects to SAP, Salesforce, Dynamics 365, ServiceNow, Workday, and most enterprise platforms through pre-built connectors. Custom REST API connectors handle systems without a pre-built connector. EPC Group has built connectors for internal line-of-business systems that have no standard Power Platform connector.

How long does a Power Apps project take?

A focused Canvas app for a single business process (e.g., an inspection form, an approval workflow) typically takes 3–6 weeks including design, build, testing, and user training. A Model-Driven app with a complex Dataverse data model runs 6–12 weeks. Power Pages portals with external authentication and multi-role access run 8–16 weeks.

Build Your Custom Business App

EPC Group builds Power Apps for enterprise organizations that need to move faster than custom development allows. Fixed-scope engagements with documented requirements before any build begins.

Call (888) 381-9725 or contact us online to discuss your Power Apps project. You can also book directly with our Power Platform practice.