Outlook Add-ins Development
Custom Outlook add-in development for email automation, CRM integration, and calendar workflows. We build contextual Outlook add-ins using Office.js for Outlook 2016 through Microsoft 365 — AppSource-ready and enterprise-secure.
Outlook Add-ins Development Expertise
Our Outlook Add-ins Development Means:
- Secure OAuth2 and OpenID Connect flows
- Contextual add-in activation rules
- Mobile-optimized Outlook interfaces
- High-volume email processing and filing
- Cross-tenant deployment strategies
Custom Outlook Add-ins Development Services
Contextual email add-ins surfacing live data in the reading pane
Enterprise-grade contextual email add-ins surfacing live data in the reading pane solutions built on the latest Microsoft frameworks.
CRM integration — Salesforce, HubSpot, Dynamics 365, and custom APIs
Enterprise-grade crm integration — salesforce, hubspot, dynamics 365, and custom apis solutions built on the latest Microsoft frameworks.
Email template libraries with dynamic variable insertion
Enterprise-grade email template libraries with dynamic variable insertion solutions built on the latest Microsoft frameworks.
Calendar and meeting automation workflows
Enterprise-grade calendar and meeting automation workflows solutions built on the latest Microsoft frameworks.
Email filing to SharePoint, Dynamics, or document management systems
Enterprise-grade email filing to sharepoint, dynamics, or document management systems solutions built on the latest Microsoft frameworks.
Microsoft Graph API — mail, calendar, contacts, and OneDrive
Enterprise-grade microsoft graph api — mail, calendar, contacts, and onedrive solutions built on the latest Microsoft frameworks.
Azure AD / Microsoft Entra ID SSO for secure enterprise access
Enterprise-grade azure ad / microsoft entra id sso for secure enterprise access solutions built on the latest Microsoft frameworks.
Cross-platform: Windows, Mac, Outlook Web (OWA), and Mobile
Enterprise-grade cross-platform: windows, mac, outlook web (owa), and mobile solutions built on the latest Microsoft frameworks.
AppSource certification and marketplace publishing
Enterprise-grade appsource certification and marketplace publishing solutions built on the latest Microsoft frameworks.
Ongoing maintenance and Outlook API compatibility updates
Enterprise-grade ongoing maintenance and outlook api compatibility updates solutions built on the latest Microsoft frameworks.
Types of Outlook Add-ins Development We Develop
Contextual Panels
Activate your add-in based on specific email keywords or sender types for instant data access.
CRM Sync
Update your leads and contacts directly from the inbox without switching tabs.
Smart Templates
Deploy company-wide email templates with automated branding and compliance.
Meeting Scheduler
Advanced calendar logic to automate complex booking and room reservation workflows.
Featured Solutions & Interfaces
In-Inbox CRM Management
Email Workflow Automation
Driving Real Business
Value with Outlook Add-ins Development
Don't just add features—solve bottlenecks. Our custom solutions are engineered to reduce manual effort by up to 40% and ensure 100% data accuracy.
Cost Reduction
Automate repetitive tasks and eliminate manual data entry.
Native Experience
Add-ins look and feel like part of the original Microsoft app.
Centralized Deployment
Deploy instantly via Microsoft 365 Admin Center.
Data Security
Inherit Microsoft's enterprise-grade security protocols.
Industry-Specific Solutions
We tailor our Microsoft development expertise to meet the unique compliance and workflow requirements of your sector.
What Our Clients Say
Join 500+ businesses who trust us with their critical Office automation and enterprise add-in development.
"The Excel add-in developed by this team transformed our data reporting workflow. What used to take 4 hours now happens in minutes with 100% accuracy."
"Expert knowledge of the Microsoft Graph API. They built a seamless Outlook integration that helped our sales team sync CRM data without leaving their inbox."
"Navigating AppSource certification is tough, but they handled everything. Our Word add-in was approved on the first try thanks to their clean code."
Frequently asked questions
Do your add-ins work on Outlook Mobile?
Can you integrate with custom APIs?
Explore Related Solutions
Complement your current ecosystem with our other specialized Microsoft development services.
Start your Outlook Add-ins Development project
Our experts are ready to help you architect and deploy your enterprise solution. Schedule a technical discovery call today.
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Global Support
Working with clients across North America, Europe, and Asia.