Teams Add-ins Development

MSOfficeAddin builds custom Microsoft Teams add-ins, tab applications, bots, and messaging extensions for enterprise organizations using Microsoft 365. As a specialist Teams add-in development company, we extend the Microsoft Teams collaboration platform with purpose-built tools that keep your teams productive without switching applications.

**Why Microsoft Teams add-in development is the fastest-growing Microsoft 365 investment:**

Microsoft Teams has become the central hub of enterprise work — replacing email for internal communication, video conferencing, project collaboration, and now, application access. Building a custom Teams add-in means placing your workflow tools exactly where your employees already spend their working day. The result is faster adoption, reduced context-switching, and measurable productivity gains.

**Teams add-in development solutions we deliver:**

- **Teams Tab Apps** — build React-based tab applications that embed your internal tools, dashboards, or external web apps directly inside a Teams channel, personal app, or meeting — with full Azure AD SSO for seamless authentication
- **Teams Bots** — conversational bots that automate workflows, answer employee FAQs, trigger backend processes, and integrate with your CRM, ERP, or ticketing system using natural language interaction
- **Messaging Extensions** — search extensions and action commands that let users pull data from external systems and insert it into Teams conversations without leaving the chat window
- **Meeting Apps** — custom pre-meeting, in-meeting, and post-meeting apps for agendas, live polls, action item tracking, and follow-up automation
- **Teams + Microsoft Graph** — integrate Teams channels, chats, meetings, and files with the full Microsoft 365 ecosystem including SharePoint, Outlook, OneDrive, and Planner
- **Teams + Azure AD / SSO** — enterprise-grade authentication using Microsoft Entra ID so users access your Teams app with their existing Microsoft account — no separate login
- **Teams Connectors** — push notifications and data feeds from external services into Teams channels as actionable cards
- **Teams + Power Automate** — automated workflow triggers connected to Teams events, channel messages, and meeting completions
- **Teams Toolkit development** — we use Microsoft's official Teams Toolkit for VS Code to build, debug, and deploy with best-practice project structure

**Technology stack:** Microsoft Teams JavaScript SDK · Teams Toolkit · React · TypeScript · Node.js · Azure Bot Framework · Microsoft Graph API · Azure AD (MSAL) · Adaptive Cards · Azure Functions · Power Automate · Fluent UI

**Industries we serve:** Professional services and consulting · Financial services · Healthcare and life sciences · Education · Technology and SaaS · Government and public sector · Retail and e-commerce

**Deployment and distribution:** We support Teams app deployment via the Microsoft Teams Admin Center for tenant-wide rollout, as well as publication to the Microsoft AppSource marketplace and Teams App Store for commercial distribution.

**GEO coverage:** We deliver Microsoft Teams add-in development projects for clients in the United States, United Kingdom, Australia, Canada, Germany, Netherlands, and across the globe. All projects are managed with timezone-aligned communication and secure, documented delivery.